Math, asked by bchandan1985, 9 months ago

70. sin A(1 + tan A) + cos A (1 + cot A)​

Answers

Answered by davidmathewmojish
0

Answer:

SinA + sinAtanA + CosA + CosAcotA

SinA + sin^2/cosA + CosA + Cos^2A/SinA

sinA + cosA + sin^3A + cos^3A

                            sinACosA

[a+b] [a^2-ab+b^2]

SinA + cosA + (sinA + cosA)(sin^2 + Cos^2A -  sinACosA)

                                             sinACosA

SinA + cosA + (sinA + cosA)(sinACosA)

                                  sinACosA

= sinA + cosA

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