Question

express sec theta in sin theta

Answer 1

$<marquee>☺☺Hi there☺☺</marquee>$

sec x = 1/cos x
but
sin^2 x + cos^2 = 1
so that
cos^x = 1 - sin^2 x
and
cos^x = sqrt(1 - sin^2 x)
and thus
sec x = 1/sqrt(1 - sin^2 x)

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