Sin square 40 degree - cos square 50 degree
Answers
Answered by
2
Answer:
Answer is zero(0).
Step-by-step explanation:
sin^2 40° - cos^2 50°
sin^2 40° - cos^2 (90°-40°)
sin^2 40° - sin^2 40°
0
IDENTITY USED -
sin(theta) = cos(90°- theta)
Answered by
0
Answer:
sin^2 40degree-cos^2 50
sin^2 40 degree-sin^2 40=0
Step-by-step explanation:
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