plz solve .. ........ .
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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).
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