Math, asked by dkmondal1971, 10 months ago

If sinα = ½ and α is an acute angle find the value of 3cosα – 4cos3α

Answers

Answered by akathwal004

0

hope this ans will be helpful ...

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Answered by Anonymous

2

Answer:

Sina=1/2

sin30°=1/2

a=30°

Step-by-step explanation:

3cos30-4cos3a

3(√3/2)-4(0)

3√3/2

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