Math, asked by anubhavtharu8, 2 months ago

If 10i - 7j and ai + 10j are perpendicular to each
other find the value of a.

Answers

Answered by singhkumarsusant

0

एक ही equation में a है, so it is difficult.

Answered by iamproton

0

Step-by-step explanation:

use dot product rule

Vector A = 10i - 7j

Vector B = ai + 10j

A.B = 0

(10i - 7j). (ai+10j) = 0

10a - 70 = 0

a= 7

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