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find the value of sin 60degree/cos*cos 45degree-

Cot 30degree+15cos90degree

2 answers

looks like you need to review your basic triangles:

sin 60°/cos^2 45° - cot 30° + 15cos 90°
√3/2 / 1/2 - √3 + 15*0
√3 - √3
0

Sin(theta-30digree)=1/2

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