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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

The question is indicated below: no 29

Subject: Maths, asked on 23/3/22

The question is indicated below: no 28

Subject: Maths, asked on 23/3/22

The question is indicated below: no 27

Subject: Maths, asked on 23/3/22

The question is indicated below: no 26

Subject: Maths, asked on 23/3/22

The question is indicated below: no 25

Subject: Maths, asked on 23/3/22

The question is indicated below: 24

Subject: Maths, asked on 23/3/22

The question is indicated below: no 21

Subject: Maths, asked on 23/3/22

The question is indicated below: no 20

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