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3 years ago

If sin 2X = COS ZY and m2X = 72°, what is the measure of ZY? 18° 072° 90° 108°

Mathematics

2 answers:

Brilliant_brown [7]3 years ago

8 0

The answer would be 18’

KATRIN_1 [288]3 years ago

5 0

Answer:

18°

Step-by-step explanation:

sin 2x=cos zy

m(2x)=72°

cos(π/2-a)=sin a

cos(π/2-72°)=sin72°

cos18°=sin72°

=>m(zy)=18°

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