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densk [106]
3 years ago
5

True or False. Explain your answer. csc^-1[csc(-pi/4)]=-pi/4 sec[sec^-1(sqrt3)]=sqrt3

Mathematics
2 answers:
boyakko [2]3 years ago
7 0
Property of inverse functions:
f(f^{-1}(x)) = x \\  \\ f^{-1}(f(x)) = x

Therefore the answer to both is True.
Korolek [52]3 years ago
5 0

Answer:

True

Step-by-step explanation:

Given : Expression \csc^{-1}[\csc(-\frac{\pi}{4})]=-\frac{\pi}{4} and \sec[{\sec^-1}(\sqrt3)]=\sqrt3

To find: The given expression are true or false?

Solution :

In the given expression,

Applying Inverse trigonometric functions,

i.e, f(f^{-1}x)=x

or \csc^{-1} (\csc x)=x\\\csc(\csc^{-1} x)=x

and this true for all trigonometric functions.

So, if apply in the given expression the resultant we get is true.

\csc^{-1}[\csc(-\frac{\pi}{4})]=-\frac{\pi}{4} is true

and \sec[{\sec^-1}(\sqrt3)]=\sqrt3 is true

Therefore, The given expressions are true.                

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