STD 11 - 3. trignometrical ratios,functions and identities - CBSE STD 11 Science Maths Questions - Vidyadip

Question types

STD 11 - 3. trignometrical ratios,functions and identities question types

521 questions across 1 question group — pick any mix to generate a Maths paper with step-by-step answer keys.

521

Questions

1

Question groups

5

Question types

M.C.Q (1 Marks)

Sample Questions

STD 11 - 3. trignometrical ratios,functions and identities questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark

If for real values of $x,\cos \theta = x + \frac{1}{x},$ then

A
$\theta $ is an acute angle
B
$\theta $ is a right angle
C
$\theta $ is an obtuse angle
✓
No value of $\theta $ is possible

Answer: D.

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Q 2M.C.Q (1 Marks)1 Mark

The equation ${(a + b)^2} = 4ab\,{\sin ^2}\theta $ is possible only when

A
$2a = b$
✓
$a = b$
C
$a = 2b$
D
None of these

Answer: B.

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Q 3M.C.Q (1 Marks)1 Mark

$(m + 2)\sin \theta + (2m - 1)\cos \theta = 2m + 1,$ if

A
$\tan \theta = \frac{3}{4}$
✓
$\tan \theta = \frac{4}{3}$
C
$\tan \theta = \frac{{2m}}{{{m^2} + 1}}$
D
None of these

Answer: B.

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Q 4M.C.Q (1 Marks)1 Mark

If $\sin A,\cos A$ and $\tan A$ are in $G.P.$, then ${\cos ^3}A + {\cos ^2}A$ is equal to

✓
$1$
B
$2$
C
$4$
D
None of these

Answer: A.

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Q 5M.C.Q (1 Marks)1 Mark

If $\tan \theta + \sec \theta = {e^x},$ then $\cos \theta $ equals

A
$\frac{{({e^x} + {e^{ - x}})}}{2}$
✓
$\frac{2}{{({e^x} + {e^{ - x}})}}$
C
$\frac{{({e^x} - {e^{ - x}})}}{2}$
D
$\frac{{({e^x} - {e^{ - x}})}}{{({e^x} + {e^{ - x}})}}$

Answer: B.

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