sabika13
How do I prove this by using trig identities: (2sin^2x1)/(sinxcosx)/=tanxcotx



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ghazi
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\[2 \sin^2 x1= 2\sin^2x(\sin^2x+\cos^2x)= \sin^2x\cos^2x \]

sabika13
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how does that equal to sin^2xcos^2x

ghazi
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sin^2 x + cos^2x=1

sabika13
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sin^2xcos^2x/sin^2xcosx..now what do i do

ghazi
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\[\frac{ \sin^2 }{ \sin x *\cos x } \frac{ \cos^2 x }{ sinx * \cos x }= tanx  \cot x\] clear?

ghazi
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@sabika13 hope that helps you

sabika13
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how doss sin^2/sinxcosx=tanx?

sabika13
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does

ghazi
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dw:1352223957740:dw how about now?

ghazi
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still confused?

ghazi
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dw:1352224079572:dw

sabika13
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ohhhhh thank you so much, i wrote my denominator wrong, thats why i was confused