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MAHAVEER PUBLICATION-TRIGONOMETRIC RATIOS-QUESTION BANK
- Show that sin^2 46^@+sin^2 44^@=1.
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- Prove that sqrt((1+sintheta)/(1-sintheta))+sqrt((1-sintheta)/(1+sinthe...
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- Prove thatsqrt((cosec theta+cottheta)/(cosec theta-cottheta))=(sin the...
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- Prove that sqrt((1+sintheta)/(1-sintheta))+sqrt((1-sintheta)/(1+sinthe...
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- Prove that cosec^2theta+sec^2theta=(sec^2theta)/(sin^2theta)
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- (1+sin2theta+cos2theta)/(1+sin2theta-cos2theta)=
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- Prove that cos(120^@-A)+cosA+cos(120^@+A)=0.
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- Prove that tan(45^@-theta)=(cos theta-sin theta)/(cos theta + sin thet...
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- Prove that tan(pi/4+theta/2)=sec theta+tan theta
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- sin 20^(@) sin 40^(@) sin 60^(@) sin 80^(@) =(3)/(16)
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- If A+B+C=pi, prove that sin 2A+sin 2B-sin 2C=4 cos A cos B sin C
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- If A+B+C=pi, prove that tan A+tan B+tan C= tanA tan B tan C
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- If A+B+C=pi/2, prove that tan A tan B+tan B tan C+tan C tan A=1
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- If A+B+C=pi, prove that: "sin" A+"sin" B-"sin" C=4 "sin"(A)/(2)"sin...
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- If A+B+C=pi and cos A=cos B. cosC,prove that cot B cot C=1/2
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- Express sin 6theta+sin3theta as a product.
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- Evaluate using multiple angle formula: sin15^@
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- Evaluate using multiple angle formula: cos15^@
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- Evaluate using multiple angle formula: tan15^@
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- Prove that :(tan69^0+t a n 66^0)/(1-t a n 69^0t a n\ 66^0)=-1
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