Question

if tantheta=3/4 then find the value of cos2theta-sin2theta​

Answer 1

Answer

= 7/25

Step-by-step explanation:

if tan theta =3/4, theta = 37°

cos2 theta= 4/5*4/5=16/25

sin2 theta= 3/5*3/5=9/25

cos2 theta - sin2 theta = 16/25-9/25

=7/25.

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Answer 2

Answer:

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