show that sin2 teta ÷1-cos 2 teta=cos teta
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Answer:
cot theetha
Step-by-step explanation:
L.H.S =Sin2x/(1-cos2x)
we now that sin2x = 2sinx.cosx
and1-cos2x= 2sin²x
= ( 2sinx.cosx)/2sin²x
= cosx/sinx = cotx
check your question it is cotx not cosx
x--> theetha
Thanku.....
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