DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 66

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10th CBSE

IMPORTANT

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In the adjoining figure, if $D$ is mid-point of $BC$ , then the value of $\frac{\tan x °}{\tan y °}$ is

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Important Questions on Introduction to Trigonometry

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10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 67

If

\cos 3 θ = \frac{\sqrt{3}}{2}; 0 < θ < 20 °

, then the value of

θ

is:

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10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 68

Expressing

\sin A

in terms of

\cot A

is

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IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 69

The value of

\sin^{2} 30 ° + \cos^{2} 45 ° + \cos^{2} 30 °

is

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10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 70

If

\tan 2 A = c o t (A - 18 °)

, then the value of

A

is

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10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 71

If

\sin θ = \frac{1}{2}

, then the value of

\sin θ (\sin θ - cosec θ)

is

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10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 72

The value of

\sin θ \cos (90 ° - θ) + \cos θ \sin (90 ° - θ)

is:

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10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 73

If

\cot θ = \frac{7}{8}

, then the value of

\frac{(1 + \cos θ)}{(1 - \sin θ)} \times \frac{(1 - \cos θ)}{(1 + \sin θ)}

is:

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10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 8 - Introduction to Trigonometry>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 74

If

\cos (20 ° + θ) = \sin 30 °

, then the value of

θ

is: