Question

cos square a - cos squareb /cos square a . cos square b = tan square b - tan square a​

Answer 1

Answer:

to prove the given equation

Step-by-step explanation:

cos square a - cos square b/cos square a.cos square b

=cos square a/cos square a.cos square b - cos square a/cos square a*cos square b

=1/cos square b - 1/cos square a

=sec square b - sec square a

=(1 + tan square b) - (1 + tan square a)

tan square b - tan square a