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In $\triangleABC$ if $\beta=90^{\circ}$, then according to law of cosine the value of the square of the side b is defined as:
NETNUST Entry TestMathematicsApplication of Trigonometry
In $\triangleABC$ if$\alpha=90^{\circ}$ then according to law of cosine the value of the square of the side a is defined as
NETNUST Entry TestMathematicsApplication of Trigonometry
If $\alpha, \beta\:and\:\gamma$ are the measures of the angles of a triangle, and a, b and c are the lengths of sides opposite these angles then according be law of cosine, the value of $cosine\gamma$ is defined as:
NETNUST Entry TestMathematicsApplication of Trigonometry
If $\alpha, \beta\:and\:\gamma$ are the measures of the angles of a triangle and a, b and c are the lengths of sides opposite these angles them according to law of cosine, the value of $cosine \beta$ is defined as:
NETNUST Entry TestMathematicsApplication of Trigonometry
If $\alpha,\beta\:and\:\gamma$ are the measures of the angles of a triangle, and a, b and c are the lengths of sides opposite these angles, then according to law of cosine, the value of cosine $\alpha$ is defined as
NETNUST Entry TestMathematicsApplication of Trigonometry
If $\alpha, \beta\:and\:\gamma$ are the corresponding angles of the sides a, b and c are respectively in an oblique triangle, then according to law of cosine, the value of the square of the side is
NETNUST Entry TestMathematicsApplication of Trigonometry
If $\alpha, \beta\:and\:\gamma$ are the corresponding angles of the sides a, b and c respectively in an oblique triangle, then according to law of cosins, the value of the square of the side b is
NETNUST Entry TestMathematicsApplication of Trigonometry
If $\alpha, \beta\: and\: \gamma$ are the corresponding angles of the sides a, b and c respectively in an oblique triangle, then according to law of cosins, the value of the square of the side a is
NETNUST Entry TestMathematicsApplication of Trigonometry
A triangle that does not have a right angle is called
NETNUST Entry TestMathematicsApplication of Trigonometry
The angle of elevation of the tops of two towers at the middle point of the line joining the foots of the tower are $60^{\circ}$ and $30^{\circ}$ respectively. Then the ratio of the height of the tower is
NETNUST Entry TestMathematicsApplication of Trigonometry
If a flag-staff 6m high placed on the top of a tower. Makes the shadow $2\sqrt{3}$ on the ground, then the angle of elevation of the sun is
NETNUST Entry TestMathematicsApplication of Trigonometry
The angle of depression of the ship from the top of a tower 30m high is $60^{\circ}$, the distance of the skip from the tower is
NETNUST Entry TestMathematicsApplication of Trigonometry
A pole of 20m high is broken in a wind storm and the top of the pole makes angle $30^{\circ}$ with the ground. The height of the point at which it is broken is
NETNUST Entry TestMathematicsApplication of Trigonometry
The angle of depression of the point at a distance 70m from the foot of the tower from the top of the tower is $45^{\circ}$. The height of the tower is
NETNUST Entry TestMathematicsApplication of Trigonometry
The angle of depression from the top of a tower at a point P on the ground is $30^{\circ}$. If the distance of the tower from P is 24m, the height of the tower is
NETNUST Entry TestMathematicsApplication of Trigonometry
In the flag, $\overline{AC}$ and $\overline{BC}$ are congruent sides. Find $\overline{AB}$
NETNUST Entry TestMathematicsApplication of Trigonometry
When the angle between the groung and the sun is $30^{\circ}$, flag pole casts a shadow of 40m long. The height of the top of the flag is
NETNUST Entry TestMathematicsApplication of Trigonometry
A kite flying at a height of 67.2m is attached to a fully stretched string inclined at an angle of $55^{\circ}$ to the horizontal, the length of the string is
NETNUST Entry TestMathematicsApplication of Trigonometry
Two towers each 120m high are 800m apart. The measure of the angle of elevation from the base of one tower to the top of the other is
NETNUST Entry TestMathematicsApplication of Trigonometry
The angle of elevation of the top of a tree from a point 17m from its foot is $42^{\circ}$. The height of the tree is
NETNUST Entry TestMathematicsApplication of Trigonometry
A ladder leaning against a vertical wall makes an angle of $24^{\circ}$ with the wall. Its foot is 5m from the wall. Its length is
NETNUST Entry TestMathematicsApplication of Trigonometry
A vertical pole is 8m high and the length of its shadow is 6m. The angle of elevation of that moment is
NETNUST Entry TestMathematicsApplication of Trigonometry
In right triangle ABC, if angle $\gamma=90^{\circ}$ a=8 and b=8 and angle $\alpha$=?
NETNUST Entry TestMathematicsApplication of Trigonometry
In right triangle ABC, if $\gamma=90^{\circ}$ b=68.4, c=96.2 then a=?
NETNUST Entry TestMathematicsApplication of Trigonometry
In right triangle ABC, if $\gamma=90^{\circ}$, a=5429, c=6294 then side b=?
NETNUST Entry TestMathematicsApplication of Trigonometry