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BEYOND PUBLICATION-TRIGONOMETRY-EXERCISE
- Evaluate: sec 21 / cosec 69
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- cos 15^(@) - cos 75^(@)=
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- cosec 23^@ - sec 67^@
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- sec 70^@.sin 20^@ - cos70^@.cosec 20^@
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- tan 22^@ - tan 68^@
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- If sec 4A = cosec(A - 20^@), where 4A is an acute angle, find the valu...
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- Express: sin 67^@ + cos 75^@ in terms of angles between 0^@ and 45^@.
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- Express: sec 76^@ + cosec 52^@ in terms of angles between 0^@ and 45^@...
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- Express: tan 65^@ + cot 49^@ in terms of angles between 0^@ and 45^@
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- If A , B and C are interior angles of triangle ABC ,then show that sin...
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- If A , B and C are interior angles of triangle ABC ,then show that sin...
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- If tan theta + cot theta = 2, find the value of tan^2 theta + cot^2 th...
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- Show that (cot A + tan B)/(cot B + tan A) = cot A. tan B.
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- ((1+ sin theta - cos theta )/( 1+ sin theta + cos theta ))^(2)=
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- Show that (cot A - cos A)/(cot A + cos A) = ( cosec A - 1)/(1 + cosec...
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- show that 1 + (cot^2 theta/ (1 + cosec theta)) = cosec theta
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- show that (1 + cos theta - sin^2 theta)/[(1 + cos theta)sin theta] = c...
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- Show that (1 + sin theta)/ cos theta + cos theta / (1 + sin theta) = 2...
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- Prove that [(1 + tan^2 theta)cot theta]/(cosec^2 theta) = tan theta
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- Prove that (1 + sec theta) / sec theta = sin^2 theta /(1 - cos theta)
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