find the value of cos²60-sin²60
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Answer:
Value of cos²60° - sin²60° is 0
Step-by-step explanation:
cos²60° - sin²60°
= (cos60°)² - (sin60°)²
= (cos60° + sin30°)(cos60° - sin30°)
= (1/2 + 1/2)(1/2 - 1/2)
= 1×0
= 0
Ans:- Value of cos²60° - sin²60° is 0
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