Home
Class 12
MATHS
Prove that for all values of theta , the...

Prove that for all values of `theta` , the locus of the point of intersection of the lines `xcostheta+ysintheta=a` and `xsintheta-ycostheta=b` is a circle.

Text Solution

Verified by Experts

Since the point of intersection satisfies both the given lines, we can find the locus by eliminating `theta` from the given equation. Therefore, by squaring and adding, we get equation
`x^(2)+y^(2)=a^(2)+b^(2)`
which is the equation of circle.
Promotional Banner

Topper's Solved these Questions

  • CIRCLE

    CENGAGE PUBLICATION|Exercise Examples|13 Videos
  • CIRCLE

    CENGAGE PUBLICATION|Exercise CONCEPT APPLICATION EXERCISE 4.1|1 Videos
  • BINOMIAL THEOREM

    CENGAGE PUBLICATION|Exercise Comprehension|11 Videos
  • CIRCLES

    CENGAGE PUBLICATION|Exercise Comprehension Type|8 Videos

Similar Questions

Explore conceptually related problems

Show that the locus of the pt of intersection of the st.lines xcostheta+ysintheta=a and xsintheta-ycostheta=b is a circle.

Whatever be the values of theta , prove that the locus of a point of intersection of the lines x cos theta + y sin theta = a and x sin theta - y cos theta = b is a circle.

If theta is a variable and a is contant , then find the locus of the point of intersection of the lines xcostheta+ysintheta=aand xsintheta-ycostheta=a .

Find the locus of the point of intersection of lines xcosalpha+ysinalpha=a and xsinalpha-ycosalpha=b(alpha is a variable).

If theta is a variable and a,b are constants then find the locus of the point of intersection of the lines xsintheta+ycostheta=aandxcostheta-ysintheta=b .

Whatever be the values of theta , prove that the locus of the point of intersection of the straight lines y = x tan theta and x sin^(3) theta + y cos theta = a sin^(3) theta cos theta is a circle. Find the equation of the circle.

For the variable t, the locus of the points of intersection of lines x-2y=t and x+2y=(1)/(t) is

The equation of the locus of the point of intersection of the straight lines x sin theta + (1- cos theta) y = a sin theta and x sin theta -(1+ cos theta) y + a sin theta =0 is:

Show that the locus of the point of intersection of the lines x cos alpha + y sin alpha = a and x sin alpha - y cos alpha = a , when alpha varies, is a circle.