c o s [ c o s − 1 ( − 1 7 ) + s i n − 1 ( − 1 7 ) ] = Options: A . &nbsp − 1 3 B . &nbsp 0 C . &nbsp 1 3 D . &nbsp 4 9

Answer: Option B : B c o s { c o s − 1 ( − 1 7 ) + s i n − 1 ( − 1 7 ) } = c o s π 2 = 0

cos[cos−1(−17)+sin−1(−17)]=

Question -

$c o s [c o s^{- 1} (\frac{- 1}{7}) + s i n^{- 1} (\frac{- 1}{7})] =$

Options:

A .

\frac{- 1}{3}

B .

0

C .

\frac{1}{3}

D .

\frac{4}{9}

Answer: Option B
:
B

c o s {c o s^{- 1} (\frac{- 1}{7}) + s i n^{- 1} (\frac{- 1}{7})} = c o s \frac{π}{2} = 0

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