Question

If 5 x is equals to sec theta and 5 upon x is equal to 10 theta find 5( x square minus one upon x square).

Answer 1

5x = sec theta
5/X = tan theta
sex square theta=1+ tan square theta
25x square= 1+25/xsquare
5(X square -1/x square )=1/5

Answer 2

5x=sec theta
5/x=10theta
5(x²-1)/x²
5(x²-1)/(x)(x)= tan theta (x²-1)/x