Subscribe to our Youtube Channel - https://you.tube/teachoo
Last updated at May 29, 2018 by Teachoo
Transcript
Ex 10.3, 14 If either vector = 0 or = 0 , then . = 0 But the converse need not be true. justify your answer with an example. Converse: If . = 0, then either = 0 or = 0 Let = + + = 1 + 1 + 1 and = + - 2 = 1 + 1 2 . = 1.1 + 1.1 + 1( 2) = 1 + 1 2 = 0 Hence, . = 0 but 0 and 0 Thus, the converse need not be true.
About the Author