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MBD PUBLICATION-TRIGONOMETRIC FUNCTIONS-QUESTION BANK
- Prove that (sin2A+sin5A-sinA)/(cos2A+cos5A+cosA)=tan2A
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- Prove that cotA-tanA=2cot2A
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- Prove that cotA-cosec2A=cot2A
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- Prove that (cosA-sinA)/(cosA+sinA)=sec2A-tan2A
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- Prove that tantheta(1+sec2theta)=tan2theta
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- Prove that(sinA+sinB)/(sinA-sinB)=tan((A+B)/2).cot((A-B)/2)
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- Prove that sin50^@-sin70^@+sin10^@=0
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- Prove that cos80^@+cos40^@-cos20^@=0
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- Prove that 8 sin10^@.sin50^@.sin70^@=1
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- Prove that 4sinAsin(60^@-A)sin(60^@+A)-sin3A=0
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- Prove that tan3A-tan2A-tanA=tan3Atan2AtanA
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- Prove that tan"A/2=sqrt((1-cosA)/(1+cosA)
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- Prove thatsqrt((1+sinA)/(1-sinA))=tan(pi/4+A/2)
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- Prove that (1+tan(A/2))/(1-tan(A/2))=secA+tanA
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- Prove that sectheta+tantheta=tan(pi/4+theta/2)
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- Prove that cot(A/2)=sinA/(1-cosA)
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- Find the maximum value of the 5 sinx+12cosx
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- Find the maximum value of the 24sinx-7cosx
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- Find the maximum value of the 2+3sinx+4cosx
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- Find the maximum value of the 8cosx-15sinx-2
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