Math, asked by janilthakkar, 9 months ago

cos square
x=cos60cos30+sin60sin30

Answers

Answered by shashankshekhar3028

0

Answer:

Step-by-step explanation:

Cos^2x=cos30°=√3/2

Cos(A-B)= cosAcosB+sinAsinB

Answered by sharmichaudhary

0

Step-by-step explanation:

cos²x = cos ( 60-30 )

cos²x = cos 30

cos²x = √3/2

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