Subject: Maths, asked 3 weeks ago

## The scalar product of the vector a⃗  = î + ĵ + k̂ with a unit vector along the sum of the vectors b⃗  = 2î + 4ĵ – 5k̂ and c⃗  = λî + 2ĵ + 5k̂ is equal to 1. Find the value of λ and hence find the unit vector along b⃗  + c⃗ . (All India 2019)

Subject: Maths, asked on 3/4/22

## What is known as trignometry?

Subject: Maths, asked on 9/5/22

## 2. Let I = ? ? 1 0 0 0 1 0 0 0 1 ? ? , A = ? ? 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 ? ? , and B = I ? A (a) Calculate AA and BB. (b) Determine the rank of A. (c) Determine the rank of B. (d) Are matrices A and B idempotent?

Subject: Maths, asked on 9/5/22

## For each of the following functions, sketch its graph and describe whether it is continuous and/or differentiable at the point of transition of its two formulas: (a) f(x) = ( +x 2 , x ? 0 ?x 2 , x (b) f(x) = ( +x 2 + 1, x ? 0 ?x 2 ? 1, x (c) Discuss the continuity and differentiability of the function f(x) = x 5 3

Subject: Maths, asked on 28/4/22

## I don't understand this sum

Subject: Maths, asked on 12/4/22

## This is a statistic question

Subject: Maths, asked on 23/3/22

## The question is indicated below: no 30

Subject: Maths, asked on 23/3/22

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Subject: Maths, asked on 23/3/22

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Subject: Maths, asked on 23/3/22

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Subject: Maths, asked on 23/3/22

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Subject: Maths, asked on 23/3/22

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Subject: Maths, asked on 23/3/22

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Subject: Maths, asked on 23/3/22

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Subject: Maths, asked on 23/3/22

## The question is indicated below: no 20

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