
The value of
A.
B.
C.
D.
Answer
472.5k+ views
Hint: Now, in this question hyperbolic trigonometric functions of and are mentioned. The hyperbolic functions are to be written in the exponential functions. Thereafter we will have to simplify the obtained equation to find the trigonometric equation’s value.
Formula used: We will have to use the formula of hyperbolic cos function, and hyperbolic sine function, .
Complete step-by-step answer:
According to the given information, we have
The first function is
The formula for in terms of exponential function is,
Substituting x=3 in the above given equation we get,
The first function is
The formula for in terms of exponential function is,
Substituting x=3 in the above given equation we get,
According to the given data we have to calculate , which is equal to,
So, the correct answer is “Option B”.
Note: In order to solve problems of this type the key is to have a basic understanding of trigonometric equations and values and also learn its implications. Hyperbolic functions are very similar to the trigonometric functions but are expressed in the form of exponential functions and the most common of them are and .
The formula for in terms of exponential function is,
The formula for in terms of exponential function is,
Formula used: We will have to use the formula of hyperbolic cos function,
Complete step-by-step answer:
According to the given information, we have
The first function is
The formula for
Substituting x=3 in the above given equation we get,
The first function is
The formula for
Substituting x=3 in the above given equation we get,
According to the given data we have to calculate
So, the correct answer is “Option B”.
Note: In order to solve problems of this type the key is to have a basic understanding of trigonometric equations and values and also learn its implications. Hyperbolic functions are very similar to the trigonometric functions but are expressed in the form of exponential functions and the most common of them are
The formula for
The formula for
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