Math, asked by pravansimpaw7alaksh, 1 year ago

If 2 theta+45 degree and 30 degree minus theta are acute angles, find the degree measure of theta satisfying sin (2 theta plus 45 degree)= cos (30 degree minus theta)

Answers

Answered by mukesh15
67
I think 15degrees is the correct answer
Attachments:
Answered by GaURi1936
29

Answer: 15 degree

Step-by-step explanation:

Sin (2 theta + 45) = cos ( 30- theta)

Sin (2 theta + 45) = sin [90-(30-theta)]

=> 2 theta + 45 = 60 - theta

=> 2 theta - theta = 60 -45

Theta = 15

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