Physics, asked by RushiDoiphode, 2 months ago

Find (a), if a→=3i-2-4k^ and
B→ =ai^ + 2j^ - k^ are perpendicular
one another

Answers

Answered by littlemeowmeowarmy7

5

Answer:

x = 90°

We know that

A.B = AB cos x

A.B = AB cos 90°

A.B = AB * 0

A.B= 0

(2i-3j+4k).(ai+6j-8k)= 0

On solving, we get 2a-18-32=0

a = 25

Hope you understood

Previous Question

Next Question

Similar questions

Biology, 1 month ago

The chemical linking glycolysis and Kreb's cycle is called: succinic acid acetyl Co A citric acid pyruvate...

English, 1 month ago

EX d. money 1 A. Tick / and write the correct option. (MCQS) 1. There was a poor man who wanted some a. ghosts O b. palace c. food d. money...

Science, 1 month ago

Make an innovative report on the following topic: COVID-19 lockdown-A makeover for 'Mother Nature' Collect information and write • How the coronavirus pandemic is affecting the carbon dioxide emissions? • How the rivers are much cleaner now? • How the ozone layer is healing? • How the animals are roaming freely on the street show nature is healing during the lockdown.

Physics, 2 months ago

the second law of thermodynamics deal with transfer of...

Biology, 2 months ago

what is photosynthesis points only for armies stay blessed...

English, 9 months ago

students of Class VI-VIII about a School Dramatic Competition. Draft a notice with all You are the cultural secretary of your school. You have been asked to inform the necessary details in about 50 words to be put up on the school notice board. Put the 2. notice in a box.

Math, 9 months ago

The interior angles of a polygon are in an A.P. The smallest angle is 120 degrees and the common difference is 5degrees. Find the number of sides of the polygon.

Math, 9 months ago

If sin 0 + cos 0 = √3, then prove that tan 0 + cot 0 =1...