DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 20

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IMPORTANT

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Which of the following is not defined?

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Important Questions on Introduction to Trigonometry

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IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 21

The value of

\frac{\cot 45 °}{\sin 30 ° + \cos 60 °}

is equal to

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IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 22

If

\sin θ = \frac{1}{3}

, then the value of

2 \cot^{2} θ + 2

is:

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DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 23

$△ A B C$ is right-angled at $B$ and $\cot A = \frac{3}{4}$ . If $A C = 10 cm$ , the length of $A B$ is
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DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 24

If

\sin α = \frac{1}{2}

and

α

is acute, then

(3 \cos α - 4 \cos^{3} α)

is equal to:

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DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 25

If

\cot A + \frac{1}{\cot A} = 1

, the value of

\cot^{2} A + \frac{1}{\cot^{2} A}

is

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DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 26

9 \sec^{2} θ - 9 \tan^{2} θ

is equal to

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DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 27

If

2 \sin 2 θ = \sqrt{3}

, then the value of

θ

is:

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DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 28

If

x \cos A = 1

and

\tan A = y

, then

x^{2} - y^{2}

is equal to: