SOLUTION: simplify 4cos^2\theta +4sin^2\theta
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Question 1201685: simplify 4cos^2\theta +4sin^2\theta
Answer by math_tutor2020(3817) (Show Source): You can put this solution on YOUR website!
Answer: 4
Work Shown:
use pythagorean trig identity
Therefore,
is a trig identity.
It is true for all real numbers.
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