Statement-1: In a `!ABC`,
`(a+b+c)(tanA/2+tanB/2)=2c cotC/2`
Statement-2: In a `!ABC`, a = b cos C + c cos B

Statement-1: In any !ABC , a cos A + b cos B + c cos C le s Statement-2 : In any !ABC,sinA/2sinB/2sinC/2le1/8

Statement -I : In Delta ABC , b cos ^(2) "" ( C)/(2) + c cos ^(2) ""( B)/(2) = s Statement -II Delta ABC , cot ""(A)/(2) = ( b+c)/( 2 ) rArr B = 90 ^(@) Which of the above statement is correct.

In Delta ABC, if c(a+b) cos B//2=b (a+c) cos C//2 , then the triangle is

In Delta ABC prove that (b+c-a) tan A/2 = (c+a-b) tanB/2 = (a+b-c) tanC/2

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

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

Statement-1: In a triangle ABC, if sin^(2)A + sin^(2)B + sin^(2)C = 2 , then one of the angles must be 90 °. Statement-2: In any triangle ABC cos 2A + cos 2B + cos 2C = -1 - 4 cos A cos B cos C

In a Delta ABC, a (cos^2 B+cos^2 C)+cos A(c cos C+b cos B)=