Question

Sina=a2-b2/a2+b2 write the other trigonometry rotio​

Answer 1

sin a=opposite side to a/ hypotnuse

opposite side to a=a^2-b^2

hypotnuse=a^2+b^2

(opposite side)^2+(adjacent side)^2=

(hypotnuse)^2

a^4-2a^2b^2+b^4+(adjacent side)^2= a^4+2a^2b^2+b^4

(adjacent side)^2=4a^2b^2

adjacent side=2ab

sin a=a^2-b^2/a^2+b^2

cos a=2ab/a^2+b^2

tan a=a^2-b^2/2ab

cosec a=a^2+b^2/a^2-b^2

sec a=a^2+b^2/2ab

cot a=2ab/a^2-b^2

Hope it hels you.