# Tutor profile: Aditya B.

Inactive

Aditya B.

Mathematics faculty for 5 years

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## Questions

### Subject: Trigonometry

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Question:

Find the value of sin 38° – cos 52°?

Inactive

Aditya B.

Answer:

The answer is 0. As 38 and 52 are allied angles (when sum of 2 angles is a multiple of 90°), therefore both sin38° and cos 52° are same.

### Subject: Calculus

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Question:

Newton's method is used to approximate the extrema of a function?

Inactive

Aditya B.

Answer:

The answer is NO. If the first derivative of f is known, then yes Newton's method can be used to find the zero of the derivative which is the location of an extremum of function f. Newton's method is used to approximate the zeros of a function.

### Subject: Algebra

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Question:

What is the value of under root 4?

Inactive

Aditya B.

Answer:

Answer is +2. Many of students say the answer as + and - 2. But the correct answer is +2 because square root output is always a positive number. If I change my question to x^2=4 then we can say answers are + and - 2

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