Asked by Anonymous
Verify:
tan^2a=sec^2a tan^2a-1
tan^2a=sec^2a tan^2a-1
Answers
Answered by
bobpursley
tan 0=0
sec0=1; tan^2O=0
tan^2 a does not equal -1
so, the idenity is invalid
0 does not = -1
sec0=1; tan^2O=0
tan^2 a does not equal -1
so, the idenity is invalid
0 does not = -1