1.If the vectors i^+3j^+4k^\hat{i} + 3\hat{j} + 4\hat{k}i^+3j^+4k^, λi^−4j^+k^\lambda\hat{i} - 4\hat{j} + \hat{k}λi^−4j^+k^ are orthogonal to each other, then λ\lambdaλ is equal toa.555b.−5-5−5c.888d.−8-8−8Login to continueOnly logged in users canattempt or see the solution.