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CBSE XI
>>
Math
>>
Principle of Mathematical Induction
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Q)
Prove that,
cos
θ
,
cos
2
θ
cos
2
2
θ
.
.
.
.
cos
2
n
−
1
θ
=
sin
2
n
θ
2
n
sin
θ
, for all
n
∈
N
by using the principle of mathematical induction.
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