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find f, root pi/2if f(x) = cos(sinx)*2

Posted by Sanjay Sheoran 5 years ago

CBSE > Class 12 > Mathematics

0 answers

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What is the elementary transformation of matrics

Posted by Mohit Tarad 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Meghna Thapar 5 years ago

Elementary transformations of a matrix are: 1) rearrangement of two rows (columns); 2) multiplication of all row (column) elements of a matrix to some number, not equal to zero; 3) addition of two rows (columns) of the matrix multiplied by the same number, not equal to zero. Elementary row operations are used in Gaussian elimination to reduce a matrix to row echelon form. They are also used in Gauss-Jordan elimination to further reduce the matrix to reduced row echelon form.

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Differentiation of x*√x+3

Posted by Abhinav Singh 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Sin theta is equal to

Posted by Aman Dhiman 5 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Jaspreet Singh 5 years ago

Sin¤ = P/ H

Rosy Panda 5 years ago

perpendicular/ hypotaneous

ANSWER

Math question 3.3 question no.12

Posted by Randhir Singh 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Evaluate cos (cosec'1 (13/12))

Posted by Reeba Kesharwani 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Vinayak Avasthi 5 years, 1 month ago

5/13

ANSWER

Mcq question's in mathematics

Posted by Kumari Kunti 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Chapter first MCQ questions answers

Posted by Kumari Kunti 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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YouTube channel for maths with all ncert solutions

Posted by Eshan Joshi 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Dev Kumar 5 years, 1 month ago

Mathematics analysis youtube channel

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How many of you are learning Maths from CBSE class videos YouTube channel???

Posted by Richa Raunak 5 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Richa Raunak 5 years, 1 month ago

Why???

Gaurav Rawat 5 years, 1 month ago

Bad channel

ANSWER

Long division

Posted by Kshetra Reddy 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Sin (sin-11/5+cos-1x)=1

Posted by Goverdhan Gll Laddha Laddha 53115 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Vinayak Avasthi 5 years, 1 month ago

X= 1/5

ANSWER

How to make continuety and differenciablity as easy lesson

Posted by Sundararajan Gnanasekaran 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Shree Ram Faujdar 5 years, 1 month ago

Write easy in beginning of continuity and differentiability

ANSWER

Transitive relation

Posted by Chandan Kumar 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Determinants m multiply kaise hoti hai please take a one example in adjoiny inverse of matrics

Posted by Paras Chauhan 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Paras Chauhan 4 years, 11 months ago

Fh

ANSWER

19 ex-7.2

Posted by Shubham Ray 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Inverse of f(x)=10^x+10^-x/10^x+10^-x

Posted by Bansita Panda 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Ch 1 ex 1.1

Posted by Gaurav Panwar 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find inverse of matrix by elementary row transformation [1 -1 2 0 2 3 3 -2 4]

Posted by Diksha Garg 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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(i) If A is a square matrix of order 3 such that |?| = 2, then the value of |???(????)|is

Posted by Kratika Dawar 5 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Rajan Kumar Pasi 5 years, 1 month ago

$\huge {{\text{Sol: } | {adj\ (\ adj A\ )}| } = {(|A|^{n-1}})^2}\\ \huge {=>{ | {adj\ (\ adj A\ )}| } = {(2^{3-1}})^2}\\ \huge {=>{ | {adj\ (\ adj A\ )}| } = {(2^{2}})^2}\\ \huge {=>{ | {adj\ (\ adj A\ )}| } = (4)^2}\\ \huge {=>{ | {adj\ (\ adj A\ )}| } = \boxed{16} \leftarrow Ans}\\ :-)$

Diksha Garg 5 years, 1 month ago

|adj.(adj.A)|=|A|^(n-1) ^2 It means |A|^(3-1) ^2 =2^4=16

ANSWER

Can anyone please elborate example 47 of chapter 1 relation and function? My query is when we add (2,1) or(3,2) to smallest relation R1 it becomes symmetric also, (as (1,2) and (2,3) is present in it) which is not the demand of the question.

Posted by Anuj Kaushik 5 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Anuj Kaushik 5 years, 1 month ago

Sir, if i don't getting it wrong we do not want show to symmetry here. If so, please elaborate the full answer.

Rajan Kumar Pasi 5 years, 1 month ago

Here is the answer. For symmetricity, you have to include all the possible pairs which shows symmetry.
Only one pair does not make it symmetric.

ANSWER

Definition of relation & functions

Posted by Inder Jit Heer 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Evaluate :- sin[π/2 -sin^-1 (-√3/2)]

Posted by Vinod Varma 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Jaspreet Singh 5 years ago

Let sin-¹ [-√3/2] = ¤ ¤ = -π/3 A. T. Q = Sin[π/2 + π/3] = Sin [5π/6] = sin 150• = sin (90 + 60)• = sin 90 + cos 60 + cos 90 + sin 60 = 1×1/2. + 0 × √3/2 = 1/2 = ANWSER...........!!!!!!!

ANSWER

K.C.sinha book solution

Posted by Ruby Roy 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Solve 4x-5y+16=0 and 2x+y-6=0 and also draw its graph

Posted by Ramkishor Saini 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Ramkishor Saini 5 years, 1 month ago

X=1,y=4

ANSWER

Definite integration of sin x dx with limit 2pi to 0

Posted by Virat Tiwari 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Tannu Rao 5 years, 1 month ago

-cos(2π)-(-cos(0)) = -1-(-1) = 0

ANSWER

Sin(1/2 cos inverse 4/5)

Posted by Manjari Tripathi 5 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Jaspreet Singh 5 years ago

Let cos -¹ 4/5 = ¤ B/H = 4/5 = cos ¤ Sin ¤/2 = √1-cos ¤ / √2 = 1/√10

Vinod Varma 5 years, 1 month ago

Let, cos inverse 4/5 = A where, A belongs to [0,π] So, cosA = 4/5 .............(1) We know, cos2A = 1 - 2sin^2A cosA = 1- 2sin^2 A/2 2sin^2 A/2 = 1 - cosA sin^2 A/2 = (1 - cosA)/2 Put cosA = 4/5 in equation (1) = (1-4/5)/2 = (5-4)/5/2 = 1/5 . 1/2 = 1/10 sin^A/2 = 1/10 sin A/2 = +1/√10 (sin A/2 is +ve and 0 <A<π/2) A/2 = sin inverse (1/√10) sin (1/2 .A) = sinA/2 sinA/2 = sin (sin inverse 1/√10) So, sin(sin inverse 1/√10) = 1/√10

ANSWER

Let u=i+2j, v=-2i+j and w=4i+3j . Find scalars x and y such that xu+yv=w

Posted by Krishna Agarwal 5 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Ex 7.4 class12

Posted by Aryan Sharma 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Pritika Yadav 5 years, 1 month ago

Question kaha par h

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Sir sinx + cosx = 0 how ??

Posted by Priyanka Bhakat 5 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Aman Shree 5 years, 1 month ago

1. Write cos x = sin(90-x). 2.Then, Use formula to expand Sin x + Sin(90-x) 3. We will get x= (nπ+3π/4)

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