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Tutor profile: Sireesha M.

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Sireesha M.
Sr. Mathematics Lecturer in University ,online tutor
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Questions

Subject: Discrete Math

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Question:

Construct a truth table for the compound proposition (p ∧ ¬q) → (r ∨ q). Determine the compound proposition is tautology or not?

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Sireesha M.
Answer:

Answer: p q r (p ∧ ¬q) → (r ∨ q) T T T T T T F T T F T T T F F F F T T T F T F T F F T T F F F T Not tautology

Subject: Calculus

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Question:

State True or False. Using the first fundamental of calculus ∫ab f(x) dx = F(b) - F(a) we can evaluate the following integral as follows ∫-11 (1 / x^2) dx = -2

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Sireesha M.
Answer:

False. The interval of integration [-1 , 1] contains 0 at which function 1 / x^2 is discontinuous and the above theorem cannot be applied.

Subject: C Programming

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Question:

What is difference between these two constants 10.05, 10.05f ?

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Sireesha M.
Answer:

10.05 is a double constant while 10.05f is a float constant, in c language 10.05 (any floating value without followed by ‘f’) is a double constant value.

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