Question

Which of the following is true when x = SinA + CosA and

Q: Answer-Which of the following is true when x = SinA + CosA and y = SecA + CosecA?

x SinA CosA 1 y SecA CosecA 1cosA 1sinA sinACosASinA.CosA y xSinA.CosA 2 EQ 1 both sides squaring x212sinA.CosA SinA.CosA x2-12 Put the value in EQ 2. y 2x x2-1 yx2-y 2x y2x x2y.

y = SecA + CosecA?

A y(1-2x²) = x

B y (1 + x²) = 2x

C y-2x = x²y

D y + 2x = x²y

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SSC CGL

Which of the following is true when x = SinA + CosA and

Solution

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