Trigonometry Quiz 15 – Punjab Meritorious School Preparation Portal

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If A = 130º and x = sin A + cos A then -

The equation cos x + sin x = 2 has –

Only one solution

Two solutions

No solution

Infinite number of solutions

The maximum value of 12 sinq – 9 sin² q is-

3

4

5

none of these

Minimum value of cos (cos x) is –

cos 1

cos 0

0

1

0

– √2

1/2

√2

1

–1

zero

none of these

4

2

6

0

A unique solution

Infinite no of solutions

No solution

None of these

3

4

5

21

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