Question

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If the vectors À=i+j+3k and B = xî - 2j-k are perpendicular to each other then the positive value of 'x' is

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Answer 1

ANSWER:-

Given:-

protect will be equal to zero

Solve:-

AB = 0

(\to) (1i + 1j + 3k) = 0

(\to) (xi + 2j + k) = 0

(\to) 1(x) + 1(-2) + 3(-1) = 0

(\implies) x - 2 - 3 = 0

(\implies) x - 5 = 0

(\implies) x = 5

Therefore:-

x = 5

Answer 2

Answer:

photosynthesis is the process in which plants make their own food with the help of water Sunlight minerals and chlorophyllHey i forgot to ask you one thing sorry i don't remember ur birthday can you tell me. it was there when you told your intro but it got stuck in that other account. sorry for forgetting ur b'day ..it is the answer stored as glucose or starch.thanks bro... and yes for me I like English so much.and social if you have any doubt you can ask me in that part. but that maths part well i am so careless in that so i need someone's help but thanks for asking it made me feel good.yep you too try to score high marks bro. i need yo see your name in the state list.photo means light and synthesis means making their own food.