Math, asked by manojkumaryadav59861, 11 months ago

Cos square 15 + cos square 75 = 1

Answers

Answered by Anonymous

3

Step-by-step explanation:

here is ur answer pls check

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Answered by abhineetsinghrajput

0

Answer:

Step-by-step explanation:

cos 45^2-cos 30^2+cos 30^2+cos 45^2

putting the values of cos 45 cos 30

(1/√2)²-(√3/2)²+(√3/2)²+(1/√2)²

1/2-3/4+3/4+1/2

1

rhs =lhs

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