Plz Explain the example sum 6.26 (1) and (2)
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The identity used in (i) is 2sin x = 1-cos2x
And in (ii) tan2x = (1 - cos 2x)/(sin2x)
For proof of this identity simplify 1-cos2x = 2sin²x and sin 2x=2sin x cos x
And in (ii) tan2x = (1 - cos 2x)/(sin2x)
For proof of this identity simplify 1-cos2x = 2sin²x and sin 2x=2sin x cos x
mysticd:
posted in slack
thxs sir
Answered by
2
The answer is explained in the attachment below.
Hope this helps!
Hope this helps!
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say tht formul?
root 1-cosx/2
so tht should be 1-cos2x/2 ?? na
No.
hm
but tht was the right formula
sin²A = 1-cos2A/2
sin² A/2 = ( 1 - cos A ) /2
:-)
ok
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