Home
Class 12
MATHS
All the notations used in statemnt I and...

All the notations used in statemnt I and statement II are usual.
Statement I: In triangle ABC, if `(cos A)/(a )=(cos B)/(b)=(cos C)/(c).` then value of `(r_(1)+r_(2)+r_(3))/(r)` is equal to 9.
Statement II: In `Delta ABC:(a)/(sin A) =(b)/(sin B) =(c)/(sin C)=2R,` where R is circumradius.

A

a) Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I

B

b) Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement I

C

c) Statement I is correct but Statement II is incorrect

D

d) Statement II is correct but Statement I is incorrect

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS|Exercise Exercise (Passage Based Questions)|25 Videos
  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS|Exercise PROPERTIES AND SOLUTIONS OF TRIANGLES EXERCISE 5: MATCHING TYPE QUESTIONS|4 Videos
  • PROPERTIES AND SOLUTION OF TRIANGLES

    ARIHANT MATHS|Exercise Exercise (More Than One Correct Option Type Questions)|24 Videos
  • PRODUCT OF VECTORS

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|52 Videos
  • SEQUENCES AND SERIES

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|38 Videos

Similar Questions

Explore conceptually related problems

In triangle ABC, if r_(1) = 2r_(2) = 3r_(3) , then a : b is equal to

Statement I In any triangle ABC a cos A+b cos B+c cos C le s. Statement II In any triangle ABC sin ((A)/(2))sin ((B)/(2))sin ((C)/(2))le 1/8

In a Delta ABC, show that 2R^(2) sin A sin B sin C=Delta.

Statement I In a Delta ABC, if cos ^(2)""A/2 + cos ^(2)""B/2 +cos ^(2) ""C/2=y(x^(2)+(1)/(x^(2))) then the maximum value of y is 9/8. Statement II In a Delta ABC, sin ""A/2 . Sin ""B/2 sin ""C/2 le 1/8

In triangle ABC, if sin Asin B=(ab)/c^2 , then the triangle is :

In any triangle ABC, prove that : cos frac (A+B)(2)= sin frac (C)(2) .

In any triangle ABC, prove that : a (b cos C-c cos B) = b^2 -c^2 .

In any Delta ABC, show that cos A+ cos B+ cos C = (1+ (r )/(R )).

In any triangle ABC, prove that : a (cos B + cos C) = 2 (b +c) sin^2 frac (A)(2) .

For any triangle ABC, prove that : (a+b)/c= (cos frac (A-B)(2))/(sin frac (C)(2)) .