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