Question

6. Solve for y Sin (3y - 30°) Cos (7y +50°)​

Answer 1

The value for y is 17.5°

The equation is

Sin (3y - 30°) = Cos (7y +50°)​

What is Trigonometry ?

Trigonometry is the branch oh Mathematics which involve the study of right angles , its sides and trigonometric ratios.

the equation given in the question is

Sin (3y - 30°) = Cos (7y +50°)​

cos(90 - $\rm \theta$ ) = sin  $\rm \theta$

Therefore

sin(3y-30°) = sin( 90-(7y+50°)

Equating the terms

3y - 30 = 90-7y -50

4y = 90-50+30

4y = 120-50

4y = 70

y = 17.5

The value for y is 17.5°

To know more about Trigonometry

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