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RD Chapter 6 Trigonometric Identities Ex 6.1 Solutions

Question - 61 : -

Answer - 61 : -


Question - 62 : -

Answer - 62 : -


Question - 63 : -

Answer - 63 : -


Question - 64 : -

Answer - 64 : -


Question - 65 : - (sec A + tan A – 1) (sec A – tan A + 1) = 2tan A

Answer - 65 : -


Question - 66 : - (1 + cot A – cosec A) (1 + tan A + sec A) = 2

Answer - 66 : -


Question - 67 : - (cosec θ – sec θ) (cot θ – tan θ) = (cosec θ + sec θ) (sec θ cosec θ-2)

Answer - 67 : -


Question - 68 : - (sec A – cosec A) (1 + tan A + cot A) = tan A sec A – cot A cosec A

Answer - 68 : -


Question - 69 : -

Answer - 69 : -


Question - 70 : -

Answer - 70 : -


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