Math, asked by bchandan1985, 10 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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