Math, asked by sellybth, 1 month ago

If ✔️3sinA = cosA, find 3cos2A + 2cosA.
Only answers please. Will be marked brainiliest.

Answers

Answered by SharmaManthan

1

Answer:

ANSWER⬇

√3sinA=cosA

tanA=1/√3

A=30°

Now

=3cos²A+2cosA/3cosA+2

=cosA(3cosA+2)/3cosA+2

=cosA

=cos30

=√3/2.

PLEASE MARK IT AS BRAINLIEST

Answered by dkchakrabarty01

0

Answer:

√3sinA=cos A. sin A/cosA=1/√3 tanA=1/√3

angle A=30 degree

3cos60+2cos30=3/2+2√3/2=(3+2√3)/2

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