Math, asked by lokeshrathi55p3yb5u, 1 year ago

tanA=1 and tanB=√3,then cosA.cosB-sinA.sinB is equal to?

Answers

Answered by yash1118

5

A=45° B=60° then ;

=> cos45.cos60 - sin45.sin60
= (1-√3)/2√2

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