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In $\triangleABC$, if $\gamma=90^{\circ}$,… | ClassNotes
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Sep 18, 2022
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In $\triangleABC$, if $\gamma=90^{\circ}$, then according to law of cosine the value of the square of the side c is defined as:
Difficulty: Easy
A:
$c^{2}=b^{2}+c^{2}-2bc$
B:
$c^{2}=a^{2}+b^{2}-2ab\cos\gamma$
C:
$c^{2}=b^{2}+c^{2}+2bc\cos\gamma$
D:
$c^{2}=a^{2}+b^{2}$
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ID: 63273db9ca83163ac3a108b7
