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ICSE-TRIGONOMETRICAL IDENTITIES-EXERCISE 21 (E)
- Prove the following identities : (cos A)/(1 + sin A) + tan A = sec A
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- Prove the following identities : (sin A)/(1 - cos A) - cot A = cosec...
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- Prove the following identities : (sin A - cos A + 1)/(sin A + cos A ...
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- Prove the following identities : sqrt((1+sinA)/(1-sinA))=(cos A)/(1-...
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- Prove the following identities : sqrt((1-cosA)/(1+cosA))=(sin A)/(1+...
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- Prove the following identities : (1 + (sec A - tan A)^(2))/(cosec A ...
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- Prove the following identities : ((cosec A - cot A)^(2) + 1)/(sec A ...
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- Prove the following identities : cot^(2) A ((sec A - 1)/(1 + sin A))...
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- Prove the following identities : (1 - 2 sin^(2) A)^(2)/(cos^(4) A - ...
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- Prove the following identities : sec^(4) A (1 - sin^(4) A) - 2 tan^(...
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- Prove the following identities : cosec^(4) A (1 - cos^(4) A) - 2 cot...
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- Prove the following identities : (1 + cot A - cosec A) ( 1 + tan A +...
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- If sin A + cos A = p and sec A + cosec A = q , then prove that : ...
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- If x = a cos theta and y = bcot theta, show that : (a^(2))/(x^(2...
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- If sec A + tan A = p, show that : sin A = (p^(2) - 1)/(p^(2) + 1...
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- If tan A = n tan B and sin A = m sin B, prove that : cos^(2) A =...
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- if 2 sin A - 1 = 0, show that : sin 3 A = 3 sin A - 4 sin^(3) A
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- If 4 cos^(2) A - 3 = 0, show that : cos 3 A = 4 cos^(3) A - 3 co...
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- Evaluate without using trigonometric tables. 2(("tan" 35^(@))/("cot"...
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- Evaluate : sec 26^(@) sin 64^(@) + (cosec 33^(@))/(sec 57^(@))
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