Question

Prove that :
\[2\sec^{2}A-\sec^{4}A-2cosec^{2}A+cosec^{4}A=\cot^{4}A-\tan^{4}A\]

Answer 1

@ganeshie8 @mukushla @waterineyes

Answer 2

Prove that :
\[2\sec^{2}A-\sec^{4}A-2cosec^{2}A+cosec^{4}A=\cot^{4}A-\tan^{4}A\]

Answer 3

\(\sec^2 A=1+ \tan^2 A \) and \( cosec^2 A=1+ \cot^2 A \)

just put them in the equation and get ur answer

Answer 4

i tried it but not getting

Answer 5

just do it carefully

Answer 6

Use \(x^4=(x^2)^2\) and \((a+b)^2=a^2+2ab+b^2\)

Answer 7

that too

Answer 8

pls someone try it

Answer 9

\(\sec^4A=(\sec^2A)^2=(1+\tan^2A)^2\)
Do you understand?

Answer 10

yes

Answer 11

then i had solved it .