Home
Class 12
MATHS
In a Delta ABC, a/(cos A)=b/(coa B) prov...

In `a Delta ABC, a/(cos A)=b/(coa B)` prove that

Promotional Banner

Similar Questions

Explore conceptually related problems

112. If in a Delta ABC,cos A+cos B+cos c=(3)/(2). Prove that Delta ABC is an equilateral triangle.

In any triangle ABC : If a cos A = b cos B, prove that either the triangle is isosceles or right-angled.

In Delta ABC , if (cos A)/(a) = (cos B)/(b) , then show that it is an isosceles triangle.

If in a Delta ABC, c(a+b) cos B//2 = b(a+c) cos C//2 , prove that the triangle is isosceles.

In any Delta ABC, prove that :(cos A)/(a)+(a)/(bc)=(cos B)/(b)+(b)/(ca)=(cos c)/(c)+(c)/(ab)

If in a triangle ABC, cos A +cos B+cos C=3/2 , prove that the triangle is equilateral.

In any triangle ABC, then by vectors, prove that : a=b cos C+c cos B .