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ZEN PUBLICATION-AN INTRODUCTION TO TRIGONOMETRY-ZEN ADDITIONAL QUESTIONS ( SHORT ANSWER (SA) TYPE - 2 - QUESTIONS)
- Prove that: (1)/(sec A - tan A) - (1)/(cos A) = (1)/(cos A) - (1)/(s...
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- If 7 sin^(2) A + 3 cos^(2) A = 4, show that tan A = (1)/(sqrt(3)).
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- For any acute angle theta, prove that: (i) sin^(2) theta + cos^(2) ...
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- For any acute angle theta, prove that: (ii) 1+cot^(2) theta = cosec...
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- If sin A = cos A, find the value of 2tan^(2)A + sin^(2)A +1.
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- If tan theta + cot theta =2, find the value of sqrt(tan^(2) theta + co...
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- If tan (A-B) = 1/sqrt(3) and tan(A+B)=sqrt(3), find A and B.
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- If x = r cos theta sin phi, y = r sin theta sin phi, and z= r cos phi...
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- Prove that (cot A - cos A)/(cot A + cos A) = (cosec A -1)/(cosecA+1).
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- If sinA = cosA, find the value of 2 tan^(2)A+sin^(2)A-1.
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- Prove that: sin theta (1 + tan theta) + cos theta (1+ cot theta) = sec...
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- Prove that (cos^(2) theta)/(1-tan theta)+(sin^(3) theta)/(sin theta - ...
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- Evaluate: (sec^(2)(90^(@) - theta)-cot^(2) theta)/(2 (sin^(2) 25^(@)+s...
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