Math, asked by man333mrp2or9s, 1 year ago

if Φ=30° than cos2Φ=

Answers

Answered by Karthikcbatch

1

1/2 is correct because cos 2*30 is cos60 so answer 1/2

Answered by innocentgirl1

1

cos 30 °=√3/2*2
=√3.
it may help you

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