Home
Class 11
PHYSICS
A² + b² + c² + 2ab + 2bc + 2ca is equal ...

A² + b² + c² + 2ab + 2bc + 2ca is equal to
(a + b - c)²
(a + b + c)²
2abc (a + b + c)²
(a - b + c)²

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Find the product (2a + b+c) (4a ^(2) + b ^(2) + c ^(2) - 2ab -bc -2ca)

If a + b +c =9 and ab + bc + ca =26, then find a ^(2) + b ^(2) + c ^(2).

If a ,\ b ,\ &\ c are non zero real numbers, then |b^2c^2bcb+c c^2a^2cac+a a^2b^2aba+b| is equal to a. a^2b^2c^2(a+b+c) b. a b c(a+b+c)^2 c. zero d. none of these

If a, b, and c are in A.P then (a + 2b -c) . ( 2b +c-a) . (c+a-b) = ............. .

The roots of the quadratic equation (a + b-2c)x^2- (2a-b-c) x + (a-2b + c) = 0 are

For any "Delta"A B C the value of determinant |sin^2\ \ A cot A1sin^2B cot B1sin^2\ \ C cot C1| is equal to- s in A s in B s in C b. 1 c. 0 d. s in A+s in B+s in C

If a, b, c, d and p are different real numbers such that (a^2 + b^2 + c^2)p^2 – 2(ab + bc + cd) p + (b^2 + c^2 + d^2) le 0 , then show that a, b, c and d are in GP.

The value of determinant |a-bb-cc-a b-cc-a a-b c-a a-bb-c| is equal to- a b c b. 2a b c c. 0 d. none

Prove that: |(-2a , a+b , a+c ) ( b+a ,-2b , b+c ) ( c+a, c+b , -2c)| =4(a+b)(b+c)(c+a)