Question

If tan theta + sec theta =x then whatbis the value of tan theta - sec theta

Answer 1

Solution :

Here I am using A instead of

theta.

tanA + secA = x ----( 1 )

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We know the Trigonometric identity:

tan²A - sec²A = 1

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(tanA+secA)(tanA-secA)=1

=> x(tanA-secA) = 1

[ from( 1 ) ]

=> tanA - secA = 1/x

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