Question

all trigonometry identity of class 10th

Answer 1

sin^2 a plus cos^2 -- 1 ,& sec^2 a - cosec^2 a -- 1 ,& codec ^2 a - cot^2 a -- 1 ,& cosec a -- 1/ sin a ,& sin a -- 1/ cosec a, tan a -- sin a / cos a , & cot a -- cos a / sin a , or 1/ tan a