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per3.Dec.2011.30 YARD QUESTIONS

# per3.Dec.2011.30 YARD QUESTIONS - sinx sin(x/2 =0 0 ≤...

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Using Trig Identities, Prove: Sin ( 2 -x) = -sinx
Using Trig Identities, Prove: Sec x= 2( cosxsin2x-sinxcos2x)/sin2x

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Using Trig Identities, Prove: tan 2 x – sin 2 x = tan 2 xsin 2 x
Using Trig Identities, Prove: (1+cosx+cos2x) / (sinx +sin2x) = cotx

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Using Trig Identities, Prove: 4sinxcosx= sin4x/cos4x
Solve the Trigonometric Equation:

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Unformatted text preview: sinx + sin(x/2) =0 , 0 ≤ x≤2 Solve the Trigonometric Equation: (2sinx-1)(tanx-1) =0 , 0 ≤ x≤2 Solve the Trigonometric Equation: cos(2x)cos(x)-sin(2x)sin(x)=0 , 0 ≤ x≤2 Using Trig Identities, Prove: (cosx-sinx) 2 = 1- sin(2x) Using Trig Identities, Prove: 2cosxcosy= cos(x+y)+cos(x-y)...
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per3.Dec.2011.30 YARD QUESTIONS - sinx sin(x/2 =0 0 ≤...

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