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INTRODUCTION TO TRIGONOMETRY
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SUBHASH PUBLICATION-INTRODUCTION TO TRIGONOMETRY -EXERCISE 11.4 (PROVE THE FOLLOWING)
- In Delta PQR , right - angled at Q, PR + QR = 25 cm and P...
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- Prove the following identities , where the angles involved are ac...
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- ( cos A ) /( 1 + sin A ) + ( 1 + sin A ) /( cos A ) = 2 se...
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- Prove that: (tan theta)/(1-cot theta)+(cot theta)/(1-tan theta)=1+sec ...
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- (1 + sec A ) / ( sec A ) = ( sin ^ 2 A ) /( 1 - cos A )
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- ( cos A - sin A + 1 ) / ( cos A + sin A - 1 ) = cosec A + cot...
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- sqrt (( 1 + sin A ) /( 1 - sin A )) = sec A + tan A
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- ( sin theta - 2 sin ^ 3 theta ) / (2 cos ^ 3 theta - cos thet...
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- ( sin A + cosec A ) ^ 2 + ( cos A + sec A) ^ 2 = 7 + tan ^ ...
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- ( cosec A - sin A ) (sec A - cos A ) = ( 1 ) /( tan A + cot A )
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- ( ( 1 + tan ^ 2 A )/( 1 + cot ^ 2 A )) = (( 1 - tan A)/ ( 1 - cot A...
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