BITSAT Mathematics: Questions 40 - 45 of 164

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Question number: 40

» Trigonometry » Trigonometric Identities and Equations

MCQ▾

Question

The value of 3+cot76°cot16°cot76°+cot16° is –

Choices

Choice (4) Response

a.

tan44°

b.

cot46°

c.

tan46°

d.

None of the above

Question number: 41

» Vector Algebra » Scalar and Vector Triple Product

MCQ▾

Question

For vectors u,v,w , which is not equal to remaining three?

Choices

Choice (4) Response

a.

u(v×w)

b.

(v×w)u

c.

v(u×w)

d.

(v×u)w

Question number: 42

» Matrices and Determinants » Determinants and Matrices of Order Two and Three

MCQ▾

Question

The roots of equation x1111x1111x1 =0 are –

Choices

Choice (4) Response

a.

1, 2

b.

1,2

c.

1, 2

d.

1,2

Question number: 43

» Basic Mathematics » Arithmetic » Simplifying Expressions

MCQ▾

Question

If the roots of equation (xb)(xc)+(xc)(xa)+(xa)(xb)=0 are equal, then –

Choices

Choice (4) Response

a.

a+bw+cw2=0

b.

a+b+c=0

c.

ab+c=0

d.

None of the above

Question number: 44

» Sequence and Series » Arithmetico - Geometric Progression

MCQ▾

Question

The nth term of the series 34,536,7144, is –

Choices

Choice (4) Response

a.

1n21(n+1)2

b.

1(n1)21(n+1)2

c.

1(n1)21n2

d.

None of the above

Question number: 45

» Matrices and Determinants » Algebra of Matrices

MCQ▾

Question

If for a matrix A,A2+I=0, where I is the identity matrix, then A equals

Choices

Choice (4) Response

a.

[1001]

b.

[i00i]

c.

[1211]

d.

[1001]

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