Question

if sinA=a/b, then Find the value of secA+tanA

Answer 1

I'm not sure about this ans

Answer 2

SinA=a/b

SinA=opp/hyp = BC/AC

BC=a, AC=b

AC^2=AB^2+BC^2

b^2=AB^2+a^2

AB^2=a^2-b^2

AB=a-b

secA=hyp/adj

b/a-b

tanA=opp/adj

=a/a-b

a+b/a-b

(a+b)(a+b)/(a-b)(a+b)

(a+b)^2/a^2-b^2

a^2+b^2+2ab/a^2-b^2

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