Math, asked by Kishor0979, 1 year ago

1/4 Sin4A× SecA= SinA×Cos2A

Answers

Answered by brunoconti
5

Answer:

Step-by-step explanation:

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Answered by sandy1816
0

 \frac{1}{4} sin4aseca \\  \\  =  \frac{1}{4} 2sin2acos2a \times  \frac{1}{cosa}  \\  \\  =  \frac{sin2acos2a}{2cosa}  \\  \\  =  \frac{2sinacosa \: cos2a}{2cosa}  \\  \\  = sinacos2a

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