IMO- Mathematics Olympiad Class 10: Questions 836 - 841 of 908

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Question number: 836

» Trigonometry & Applications

MCQ▾

Question

If cosA:sinA=2:4, then the value of 8cosA2sinA4cosA+2sinA is

Choices

Choice (4) Response

a.

2

b.

4

c.

14

d.

12

Question number: 837

» Trigonometry & Applications

MCQ▾

Question

If msinθncosθ=aandmcosθ+nsinθ=b,thenm2+n2 is equal to________

Choices

Choice (4) Response

a.

a2+b2

b.

a+b

c.

ab

d.

a2b2

Question number: 838

» Trigonometry & Applications

MCQ▾

Question

If sinA:cosA=4:7, then the value of 7sinA3cosA7sinA+2cosA is

Choices

Choice (4) Response

a.

314

b.

13

c.

32

d.

16

Question number: 839

» Trigonometry & Applications

MCQ▾

Question

4(sin6θ+cos6θ)8(sin4θ+cos4θ) is equal to________.

Choices

Choice (4) Response

a.

414sin2θcos2θ

b.

4+4sin2θcos2θ

c.

924sin2θcos2θ

d.

719sin2θcos2θ

Question number: 840

» Trigonometry & Applications

MCQ▾

Question

If 3cotθ=5,then5sinθ3cosθ5sinθ+3cosθ= ________.

Choices

Choice (4) Response

a.

53

b.

92

c.

45

d.

0

Question number: 841

» Trigonometry & Applications

MCQ▾

Question

tanθ+secθ1tanθsecθ+1= ________.

Choices

Choice (4) Response

a.

cosθ+1sinθ

b.

tanθ

c.

sinθ1cosθ

d.

cosecθ

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