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Byju's Answer
Standard X
Mathematics
Complementary Trigonometric Ratios
Simplify co...
Question
Simplify
cos
37
∘
sin
53
∘
×
sin
18
∘
cos
72
∘
Open in App
Solution
cos
37
°
sin
53
°
×
sin
18
°
cos
72
°
=
cos
(
90
°
−
53
°
)
sin
53
°
×
sin
(
90
°
−
72
°
)
cos
72
°
⇒
sin
53
°
sin
53
°
×
cos
72
°
cos
72
°
=
1
Hence, the answer is
1.
Suggest Corrections
4
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Q.
Evaluate the following :
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Q.
s
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Q.
Evaluate:
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Evaluate
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___
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