Question

I. Four alternatives are given for each of incomplete statement / questions.

Choose the correct answer and write the complete answer along with

its letter of alphabet. 8 x 1 = 8

1. The Pair of lines a1

x+b1

y+c1

=0 and a2

x+b2

y+c2

=0 are intersecting lines then the

ratio of their coefficients is :

A. 1 1

2 2

a b

a b

≠

B. 1 1 1

222

a b c

abc

= ≠

C. 1 1 1

222

a b c

abc = =

D. 1 1

2 2

a b

b a =

2. 2, x, 14 are in Arithmetic progression, then the value of x is :

A. 28 B. 16

C. 7 D. 8

3. The standard form of quadratic equation is :

A. ax2

˗bx+c=0 B. ax2

+bx+c=0

C. ax2

˗bx˗c=0 D. ax2

+bx˗c=0

4. Sin (90-θ) is equal to :

A. Cos θ. B. tan θ.

C. Sec θ. D. Cot θ.

5. The value of tan 450

is :

A. 3 B. 0

C. 1 D. 1

3​

Answer 1

Answer:

saravananc003

27.06.2020

Math

Secondary School

answered

Four alternatives are given for each of the following questions / incomplete

statements. Choose the correct alternative and write the complete answer

alongwith its letter of alphabet.

1.

In the pair of linear equations ax + b2y + c = 0 and anx + b2y + C2 = 0,

a bi

a2 b2

if

+

then the

(A)

equations have no solution

(B)

equations have unique solution

(C)

equations have three solutions

(D) equations have infinitely many solutions

Answer 2

Answer:

i don't know

sorry bro i was knowing then I can say you sorry