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Byju's Answer
Standard XII
Physics
Multiplication with Vectors
If sinθ = √...
Question
If
sin
θ
=
√
3
2
, where
θ
is an acute angle, then find the value of
cos
θ
.
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Solution
Given,
sin
θ
=
√
3
2
But,
cos
θ
=
√
1
−
sin
2
θ
⇒
cos
θ
=
√
1
−
3
4
⇒
cos
θ
=
√
1
4
⇒
cos
θ
=
1
2
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