the value of sin^2 29° + sin^2 61° is
.
.??
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Answered by
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Answered by
1
Answer:
thevalueofsin
2
29°+sin
2
61°is
1
solution:−
sin
2
29°+sin
2
61°
=(sin29°)
2
+sin
2
61°
=[sin(90°−61°)]
2
+sin
2
61°[sin(90°−θ)=cosθ]
=cos61°+sin
2
61°
=cos
2
61°+sin
2
61°[sin
2
θ+cos
2
θ=1]
=1
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