Home
Class 11
MATHS
The angle between the lines xcos alpha1+...

The angle between the lines `xcos alpha_1+ysin alpha_1=p_1` and `xcos alpha_2+ysin alpha_2=p_2` is
(A)   `|alpha_1+alpha_2|`    (B)   `|alpha_1-alpha_2|`    (C)   `|2alpha_1|`    (D)   `|2alpha_2|`   

A

`alpha _(1) + alpha _(2)`

B

`alpha _(1) -alpha _(2)`

C

`2 alpha_(1)`

D

`2 alpha_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

If the lines ax+y+1=0 , x+by+1=0 and x+y+c=0 , ( a , b , c being distinct and different from 1 ) are concurrent, then 1/(1-a)+1/(1-b)+1/(1-c)= (A)    0    (B)    1    (C)    1/(a+b+c)    (D)   None of these

(sqrt2 - sin alpha - cos alpha )/( sin alpha - cos alpha)=

2 sin ^(2) beta + 4 cos (alpha + beta) sin alpha sin beta + cos 2 (alpha + beta )=

If tanalpha=1/7 and tanbeta=1/3 , then cos 2alpha=

If (2sin alpha)/({1+cos alpha + sin alpha})=y, then ({1-cos alpha+sin alpha})/(1+sin alpha)=

If 32 tan^8 theta =2 cos^2 alpha-3 cos alpha and 3cos2 theta =1, then the general value of alpha is

If tan beta=(n sin alpha cos alpha)/(1-n sin^2alpha) , show that tan(alpha-beta)=(1-n)tan alpha dot

If p & q are lengths of perpendicular from the origin x sin alpha + y cos alpha = a sin alphacos alpha and x cos alpha-y sin alpha = acos 2alpha, then 4p^2 + q^2

If (3pi)/4 < alpha < pi , then sqrt(cosec^2 alpha+2 cot alpha) is equal to

If sintheta=3sin(theta+2alpha) , then the value of tan(theta+alpha)+2 tan alpha is