Question

If a and b are two perpendicular vectors, then out of the following three statements

(i) (a + b)² = (a)² + (b)². (ii) (a-b)² = (a)²-(b)²

(iii) (a-b)² = (a)² + (b) ² (iv) (a+b)² = (a−b)²

(a) only one is correct (b) only two are correct. (c) only three are correct. (d) all the four are correct​

Answer 1

Answer:

answer is c

Step-by-step explanation:

i ,iii,iv

are correct