Question

prove that ((1-sintheta)(1-sintheta)(1+tan squaretheta)=1 trignometric identeties




help me guys​

Answer 1

Answer:

$(1 - sin(x)) (1 + sin(x) )(1 - tan^{2}x) \\ = { \cos }^{2} \times { \sec}^{2} \\ = { \cos }^{2} \times 1 + \div { \cos }^{2} \\ = 1$

hence ,proved.

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