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

Do no try to solve sample paper of reference book. Just go cbse website and download previous year and sample paper and solve it. If you solve 10 sample paper then it is sufficient preparation of cbse board exam

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If a young man rides his cycle 25km/h then he had to spend Rs 2 per km on petrol with less pollution If he rides it at a faster speed of 40km/h the petrol cost increase to Rs5 per km and pollution increases He has Rs 100 to spend on petrol and wishes to find what is the maximum distance he can travel within hr express the problem as LPPsolve it graphically to find the distance to be covered with two different speeds.

Posted by Surbhi Maindola 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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AOI ki summary

Posted by Kanju S 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

integration of x^1/2divided by (7-x)^1/2+x^1/2

Posted by Annu Khemka 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

e2x√1+sin2x÷1+cos2x integration

Posted by Uday Lath 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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log|sinx|÷tanx

Posted by Vipul Jha 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Solve the trigonometric equation sin-1 6+sin-1 6√3=π/2

Posted by Pratiksha Tiwari 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Gayatri Kumari 7 years, 11 months ago

change sin inverse six x plus sin inverse six underroot three into ten inverse than solve it and then after coming results square both sides

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If A(x1, y1),B (X2,Y2) and C(x3, y3) are the vertices of an equilateral triangle whose each side is equal to a, then prove that

Posted by Neha Jangra 7 years, 11 months ago

CBSE > Class 12 > Mathematics

2 answers

Mohit Lunkad 7 years, 11 months ago

What to prove?

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Ujjawal Sharma 7 years, 11 months ago

That?

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How to integrate log(cosx)dx

Posted by Advait Prakash Mishra 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Mohit Lunkad 7 years, 11 months ago

=d log(cosx)/d (cosx) ×d (cosx)/dx =1/cosx × -sinx =-tanx

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Find equation of two line through origin which intersect the line x-3/2=y-3/1=z/1 at angle of pie/3

Posted by Sweety Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

9 answers

Aman Patel 7 years, 11 months ago

Sorry I tried but I couldn't .....

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Mohit Lunkad 7 years, 11 months ago

Once i complete the chap. I will definitely solve. ?

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Sweety Yadav 7 years, 11 months ago

Koi baat nai thanks for trying☺️☺️☺️☺️

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Mohit Lunkad 7 years, 11 months ago

Seems out of coverage area until n unless i study once.

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Mohit Lunkad 7 years, 11 months ago

Then okk i m trying ?

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Sweety Yadav 7 years, 11 months ago

Then help I've to solve it

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Mohit Lunkad 7 years, 11 months ago

Actually it seems a que. Of 3d n i have not yet touched it. So sorry i couldn't.

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Shivam Gupta 7 years, 11 months ago

Nhi

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Sweety Yadav 7 years, 11 months ago

Kya yar so gaye ho kya sare

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If a vector b vector and c vector are mutually perpendicular vectors of equal magnitude , find the angle which the vector 2a vector+ b vector + 2c vector makes with the vectors a b c .

Posted by Aastha Agarwal 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Mohit Lunkad 7 years, 11 months ago

cos inverse √2/√3 maybe.

2Thank You

ANSWER

Integration of root over of tanx

Posted by Jayanta Pradhan 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Mohit Lunkad 7 years, 11 months ago

secx/√2sin2x

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Find value of a for which curve y=x2(square) +ax+25 touches x-axis

Posted by Sweety Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

11 answers

Mohit Lunkad 7 years, 11 months ago

???

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Mohit Lunkad 7 years, 11 months ago

So have I told that dy/dx=0 is necessary.

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Sweety Yadav 7 years, 11 months ago

According to me if y=0 then it doesn't mean that dy/dx=0

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Mohit Lunkad 7 years, 11 months ago

Sorry i forgot, but a=-10 is also possible.

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Mohit Lunkad 7 years, 11 months ago

No not at all. I just want yo say that when it will touch x axis at that point y will become zero.

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Sweety Yadav 7 years, 11 months ago

U wants to say that dy/dx=0.but how can this possible

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Mohit Lunkad 7 years, 11 months ago

As when it touches x axis y=0 x2+ax+25=0 It is only possible when a=10

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Mohit Lunkad 7 years, 11 months ago

a=10

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Sweety Yadav 7 years, 11 months ago

Then help me to solve it

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Sharma Saabh 7 years, 11 months ago

Yes ...i m.

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Sweety Yadav 7 years, 11 months ago

Is anyone here

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Aletter has come either from London or from Clifton on the envelope two letters on r visible what is the probability that it has come from London

Posted by Virendra Kumaragarwal 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Wt is "chio's rule"?

Posted by Sajad Lateefsajadxx 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Wt is 'Cramer's rule"?

Posted by Sajad Lateefsajadxx 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is the other name of "Pythagoras theorm"?

Posted by Sajad Lateefsajadxx 7 years, 11 months ago

CBSE > Class 12 > Mathematics

3 answers

Urvi Sahu 7 years, 11 months ago

Yes

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Sajad Lateefsajadxx 7 years, 11 months ago

R u sure

1Thank You

Urvi Sahu 7 years, 11 months ago

Pythagorean theorem

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230(+3333)-(450)+(-2134)

Posted by Janvi Arya 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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A four digit number is formed using the digits 1,2,3,5 with no repetitions.Find the probability that the number is divisible by 5.

Posted by Urvi Sahu 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Limit0toπ(xd/4-cos^2x)

Posted by Anil Dhankhar 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integrate cos52+cos3x/1-2cosxdx

Posted by Himanshu Kumar 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Maths spporting material solution class12

Posted by Aman Patel 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find the value of cos(sec x+cosecx)

Posted by Mohit Sharma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integration 0252 sin square X upon sin x +

Posted by Shruti Rawat 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find Cartesian equation if the line to(-2,4,-5) and parallel to the line given by x+3÷3=y-4÷5=z+8÷6

Posted by Ishika Negi 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

(a,a) is reflexive symmetric and transtive on set A =(a,b,c)

Posted by Harish Arora 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Ujjawal Sharma 7 years, 11 months ago

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