Question

cos 60 digree -sin 30 digree +sin 60 digree-cos 30 degree ​

Answer 1

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cos60° = 1/2

sin30° = 1/2

sin60 = √3/2

cos30 = √3/2

cos60 -sin30 +sin60 -cos30 = 1/2 - 1/2 + √3/2 - √3/2 = 0

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Answer 2

answer:-

0

explanation:-

cos 60°-sin 30°+sin60°- cos30°

cos 60°- sin(90°- 60°) + sin 60°- cos (90°- 60°)

cos 60°- cos 60° + sin 60°- sin 60° = 0

we can solve it by using identities:-

sin theta = cos ( 90°- theta)

cos theta = sin ( 90°- theta)

hope it might helps u