A-AS Level (CIE) Mathematics Paper-5: Specimen Questions with Answers 18 - 20 of 20

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Question 18

Question

MCQ▾

Choices

Choice (4)

a.

b.

c.

d.

Answer

c.

Explanation

As,

also

and gives,

After expanding,

Question 19

Question

MCQ▾

For the equation If & are roots of equation and then

Choices

Choice (4)

a.

b.

c.

d.

Answer

b.

Explanation

Given that,

and

and

Also,

and

Question 20

Question

MCQ▾

The area bounded by the curves and is

Choices

Choice (4)

a.

b.

c.

d.

None of the above

Answer

b.

Explanation

The area of the region enclosed between two curves and the lines is given by the formula,

Area where in

If in and in , then

Area

The Area Bounded by the Curves|X|+ | Y| ⩾ 2

Area (shaded region) (area of quarter circle area of triangle)

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