Question

Prove that : sec^2 - cos^2 = sin^2[sec^2 - 1]

Answer 1

Answer:

question is incorrect

correct question should be sec^2 - cos^2 = sin^2[sec^2 + 1]

Step-by-step explanation:

so, by correct question

explanation is

1+ tan^{2} -(1-sin^{2})

tan^{2}+sin^{2}

sin^{2}/cos^{2}+sin^{2}

sin^{2}(1/cos^{2}+1)

sin^{2}(sec^{2}+1)

proved

thanks