NSTSE Class 10: Questions 14 - 19 of 183

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Question number: 14

» Mathematics » Trigonometry

MCQ▾

Question

(1+tan2θ)cos2θ=

Choices

Choice (4) Response

a.

1

b.

sec2θ

c.

1sin2θcos2θ

d.

None of the above

Question number: 15

» Mathematics » Trigonometry

MCQ▾

Question

(sin6θ+cos6θ)=

Choices

Choice (4) Response

a.

13sin2θcos2θ

b.

1+3sin2θcos2θ

c.

3sin2θcos2θ

d.

3sin3θcos3θcosecθsecθ

Question number: 16

» Mathematics » Trigonometry

MCQ▾

Question

The top of a broken tree has its top end touching the ground at a distance 15m from the bottom, the angle made by broken end with the ground is 30° . Then length of broken part =

Choices

Choice (4) Response

a.

3m

b.

10m

c.

53m

d.

103m

Question number: 17

» Mathematics » Trigonometry

MCQ▾

Question

If cosα=12 and tanβ=13 then sin(α+β)=

Choices

Choice (4) Response

a.

0

b.

12+13

c.

1213

d.

12

Question number: 18

» Mathematics » Trigonometry

MCQ▾

Question

If 5tanθ=3 then 3sinθ5cosθ3sinθ+5cosθ=

Choices

Choice (4) Response

a.

53

b.

0

c.

35

d.

Question does not provide sufficient data or is vague

Question number: 19

» Mathematics » Trigonometry

MCQ▾

Question

In ΔABCtan(B+C2)=

Choices

Choice (4) Response

a.

1

b.

cot(B+C2)

c.

tan(A2)

d.

cot(A2)

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