evaluate-sin²75°-sin²15°
Answers
Answered by
2
Answer:
sin^2(75)-sin^2(15)
=sin(75+15) sin(75-15)
=sin90 sin 60
=(1)(√3/2)=√3/2
formula used
sin^2A-sin^2B=sin(A+B)sin(A-B)
Answered by
7
Answer:
Step-by-step explanation:
sin^2(75)-sin^2(15)
=sin(75+15) sin(75-15)
=sin90 sin 60
=(1)(√3/2)=√3/2
formula used
sin^2A-sin^2B=sin(A+B)sin(A-B)
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