Question

prove that sec(A+B)= secA.secB/1-tanA.tanB​

Answer 1

Answer:

SORRY WAS IN HURRY SO WROTE IT AND ATTACHED PIC AND WRITING GOT MESSY TOO BUT IT'S UNDERSTANDABLE...

IF IT HELPS MARK BRAINLIEST AND FOLLOW PLS

Step-by-step explanation:

in pic LHS AND RHS GOT CUT....

FOLLOW AND MARK BRAINLIEST

CAUSE I M IN 10TH ('_')