Question

plz solve .. ........ . ​

Answer 1

Answer:

1.

Step-by-step explanation:

a cotx = 1 , b cosx = 1

a = 1/cotx, b = 1/cosx

b² - a²

= (1/cosx)² - (1/cotx)²

{1/cosx = secx, 1/cotx = tanx.}

=> (sec x)² - (tan x)²

=> sec²x - tan²x

=> 1. (According to the formula).