Math, asked by Natasha123451, 1 year ago

If sin3theta = cos ( theta —6° ) where 3theta and theta — 6° are both acute angle , find the value of theta..


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Answers

Answered by Shivika017
17
Hey Mate...!!!!
Here's ur answer.......

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Use attachment.........
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Hence ,
Theta = 24°

Hope it helps....!!!!
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Answered by karnrndg
3
Given, sin3theta = cos(theta - 6)
we know that sinA = cosB is only possible when A and B are complementary angles ( A+B = 90)
therefore,3 theta + (theta -6) = 90
3 theta + theta -6 =90
4theta = 90+6
theta = 96÷4 = 24 ans
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