CBSE > Class 12 > Mathematics | CBSE Board | Homework Help

Taking RHS sin^2 (x/2)+cos^2 (x/2)+2sin (x/2)cos (x/2)=1+sin2y {Let x/2=y, sin^2 y + cos^2 y=1, 2 sin y cos y=sin2} put the value of y 1+sin2 (x/2) = 1+sinx

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sqrt(2)sin 135^(@) cos 210^(@) tan 240^(@) cot 300^@ "sec" 330^(@)

Posted by Prashant Singh 4 years ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 4 years ago

Krna kya h

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Three friends Ravi, Raju and Rohit were doing buying and selling of stationery items in a market. The price of per dozen of Pen, Notebook and toys are Rupees x, y and z respectively. Ravi purchases 4 dozens of notebooks and sells 2 dozens of pens and 5 dozens of toys. Raju purchases 2 dozens of toy and sells 3 dozens of pens and 1 dozen of notebooks. Rohit purchases one dozen of pens and sells 3 dozens of notebooks and one dozen of toys. In the process, Ravi, Raju and Rohit earn ₹ 1500, ₹ 100 and ₹400 respectively.

Posted by Ranarshi Saha 4 years ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 3 years ago

X=-200 Y= -100 Z= -300

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Maximise z=3x+4y Subject to the constraints :x+y<_4 X_>0 Y_>0

Posted by Kritika Gupta 4 years ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 4 years ago

For (0,4) the value of z=16

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find the derivative of function f( x)=10 ⁵√x³- √x⁷+6 ³√x⁸-3 with respect to x

Posted by Shajiya Rahman 4 years ago

CBSE > Class 12 > Mathematics

2 answers

Bhumika Agrawal 4 years ago

6 x^(-2/5) - (7/2) x^(5/2) + 16 x^(2/3)

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. . 4 years ago

f(x)= 10x^3/5 - x^7/2+6x^8/3-3 dy/dx= 30/5 x^(-2/5) -7/2x^(5/2)+16x^5/3

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principal value of a unit circle. AIM To explore the function the sin ¹x using

Posted by Sunil Ranga 4 years ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 4 years ago

Sorry

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Find the distance of the point P(3,4,4) from the point where the line joining the points A(3,-4,-5) and B(2,-3,1) inttersects the plane 2x+y+z=7

Posted by Deepak Maindola 4 years ago

CBSE > Class 12 > Mathematics

2 answers

Bhumika Agrawal 4 years ago

7 units is the answer

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Vipin Kumar 4 years ago

Sorry

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Find inverse of matrix a=03 52 using elementary transformation method.

Posted by Shreya Maurya 4 years ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 4 years ago

[5 -3 -2 0]

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Sin^2xy

Posted by Neelam Baghel 4 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Bhumika Agrawal 4 years, 1 month ago

2sin(xy).cos (xy).(x dy/dx+ y)

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Neelam Baghel 4 years, 1 month ago

Find the derivatives

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Show that the modulues function f:R-R given by f(x) = |x| is neither one one nor onto

Posted by Sarathi P 4 years, 1 month ago

CBSE > Class 12 > Mathematics

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Cbse release term 1 class 12 maths samples paper

Posted by Magan Garval 4 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 4 years ago

Yes or shops pr bhi aagye

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Sinx minus cosx

Posted by Nitin Kumar 4 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 4 years, 1 month ago

Krna kya h

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Find the set of point of discontinuity of f(x)= sinxcosx

Posted by Neha Kumari 4 years, 1 month ago

CBSE > Class 12 > Mathematics

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Can u help me with the exercise 6.3 previous year question

Posted by Jepitha Jepi 4 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Bhumika Agrawal 4 years, 1 month ago

Yes ask

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Raghav Kumar 4 years, 1 month ago

What help u need

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Exercise1.1

Posted by Tharun Naramala 4 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 4 years, 1 month ago

Which question

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Let A={1, 2,3,4} and let R be a relation on A defined by R={(a, b) :2a+b=8}. Determine whether R is reflexive, symmetric or transitive.

Posted by Michelle Pfotte 4 years, 1 month ago

CBSE > Class 12 > Mathematics

3 answers

Bhumika Agrawal 4 years, 1 month ago

This is not reflexive. This is not symmetric. This is transitive

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Bhumika Agrawal 4 years, 1 month ago

1 ka mtlb

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Ronak Patidar Patidar 4 years, 1 month ago

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I need answer( solution) of maths activity no. - 07 of class 12th

Posted by Prerana Nahak 4 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 4 years, 1 month ago

In which lab manual

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OBSERVATION 1. Image of ordered pair (1, 2) on the graph of y = 2x in y = x is ______. It lies on the graph of y = _______. 2. Image of the point (4, 2) on the graph y = log2 x in y = x is _________ which lies on the graph of y = _______.

Posted by Prerana Nahak 4 years, 1 month ago

CBSE > Class 12 > Mathematics

3 answers

Bhumika Agrawal 4 years, 1 month ago

Image of ( x , y) in line y = x is ( y , x) Hence image of ( 1, 2) in line y = x is ( 2 , 1) and graph y = 2ˣ becomes x = 2^y2y taking log both sides => log x = log 2^y2y => log x = y log 2 => log x / log 2 = y => y = log x / log 2 => y = log₂x Image of ordered pair (1,2) on the graph of y=2^x in y=x is (2 , 1) It lies on the graph of y= log₂x

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Haigriv Patel 4 years, 1 month ago

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Haigriv Patel 4 years, 1 month ago

Image of ( x , y) in line y = x is ( y , x) Hence image of ( 1, 2) in line y = x is ( 2 , 1) and graph y = 2ˣ becomes x = 2^y2 y taking log both sides => log x = log 2^y2 y => log x = y log 2 => log x / log 2 = y => y = log x / log 2 => y = log₂x Image of ordered pair (1,2) on the graph of y=2^x in y=x is (2 , 1) It lies on the graph of y= log₂x

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Exercise 5.1 questions 6

Posted by Rahul Kumar 4 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 4 years, 1 month ago

LHL lim x tends to 2 f (x) lim x tends to 2 2x+3 2×2+3=7 RHL lim x tends to 2 f (x) lim x tends to 2 2x-3 2×2-3=1 f (2) 2x+3 2×2+3=7 LHL is not equal to RHL is not equal to f (x)

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If A =           3 3 5 –1 2 3 2 0 0 , then find A (adj A).

Posted by Yash Jain 4 years, 1 month ago

CBSE > Class 12 > Mathematics