Math, asked by THEBEAST002, 7 months ago

find the value of cossquare12+cossqare78

Answers

Answered by pulakmath007

1

Answer:

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Step-by-step explanation:

ANSWER ::

Cos²12° + cos² 78°

= Cos²12° + cos² (90° - 12°)

= Cos²12° + sin²12°

= 1

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