Q. 4 G5.0( 1 Vote )
Evaluate each of
Answer :
As sec(–θ) is sec(θ)
∴ sec = sec
The value of sec is –√2 .
Let sec–1(–√2) = y
⇒ sec y = –√2
= – sec = √2
= sec
= sec
The range of principal value of sec–1is [0, π]–{}
and sec = –√2.
Therefore, the value of sec–1sec is .
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