PBTE | DAE | MATH-123 APPLIED MATHEMATICS-I | MCQs | Chapter : 03 Fundamental of trigonometry

DAE MATH-123

Applied Mathematics-I

Chapter 3 : Fundamental of trigonometry

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Multiple Choice Questions

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Chapter:03 (Fundamental of trigonometry)

Question 1:

One degree is equal to:

\(π rad\) \({\frac{π}{180}}rad\) \({\frac{180}{π}}rad\) \({\frac{π}{360}}rad\)

Question 2:

\({15^0}\) is equal to:

\({\frac{π}{6}}rad\) \({\frac{π}{3}}rad\) \({\frac{π}{12}}rad\) \({\frac{π}{15}}rad\)

Question 3:

\({75^0}\) is equal to:

\({\frac{π}{12}}rad\) \({\frac{2π}{3}}rad\) \({\frac{4π}{3}}rad\) \({\frac{5π}{12}}rad\)

Question 4:

One radian is equal to:

\({90^0}\) \({(\frac{90}{π})^0}\) \({180^0}\) \({(\frac{180}{π})^0}\)

Question 6:

\({\frac{2π}{3}}\) radians are equal to:

\({60^0}\) \({90^0}\) \({120^0}\) \({150^0}\)

Question 7:

The terminal side of θ lies in \(4^{th}\) quadrant, sign of the sin θ will be:

Positive Negative Both +ve and – ve None of these

Question 10:

π rad is equal to:

\({360^0}\) \({270^0}\) \({180^0}\) \({90^0}\)

Question 11:

The relation between are l, radius r and central angle θ rad is:

\(l={\frac{θ}{r}}\) \(l={\frac{r}{θ}}\) \({l = r θ}\) \({l = {r^2} θ}\)

Question 12:

If l = 12cm and r = 3 cm, then θ is equal to:

\(36 rad\) \(4 rad\) \({\frac{1}{4}} rad\) \(18 rad\)

Question 18:

If sin θ is +ve and cosθ is –ve, then the terminal side of the angle lies in:

\({1^{st}}\) quad \({2^{nd}}\) quad \({3^{rd}}\) quad \({4^{th}}\) quad

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