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  • 2 answers

Tannu Rao 5 years, 3 months ago

U can draw graphs of cosx and sinx in interval [0,π/2]. From the graphs, we can infer that both the functions are one one. Or f'(x)=cosx and g'(x)=-sinx. Derrivatives of both the functions are only +ve and -ve respectively in the given interval. Hence both are one one. (f+g)(x)=sinx +cosx (f+g)'(x)=cosx-sinx which is both +ve as well as -ve in the given interval. Hence it is many one.

Priyanka Birat 5 years, 3 months ago

Can anyone solve this question in good explanation .
  • 3 answers

Nikhil Kumar 5 years, 3 months ago

Hor Kuchh

Nikhil Kumar 5 years, 3 months ago

When gof is one one then f is always one one but not necessarily that g is one one. When gof is onto then g always one one but not necessarily f is one one.

Aryan Choudhary ?? 5 years, 3 months ago

When gof is one one then f is always one one but not necessarily that g is one one. When gof is onto then g always one one but not necessarily f is one one.
  • 1 answers

Tannu Rao 5 years, 3 months ago

0.87
  • 2 answers

Anjali ? 5 years, 3 months ago

3 (tan^-1)x+(cot^-1)x=π 2(tan^-1)x+(tan^-1)x+(cot^-1)x=π 2(tan^-1)x+π/2=π 2(tan^-1)x=π/2 (tan^-1)x=π/4 X=1

Sumit Malviya 5 years, 3 months ago

We can write it as . 2tan-1x+tan-1x + cot-1x=π Now,we know tan-1x+cot-1x=π÷2 So 2tan-1x+π÷2= π 2tan-1x=π÷2 tan-1x=π Putting (tan-1 0 =π tan-1x=tan-1 0 On comparing (x=0)
  • 1 answers

Mohd Atif 5 years, 3 months ago

(x)^cosx{cosx/x--sinx.logx}+cos2x=y'
  • 3 answers

Tannu Rao 5 years, 3 months ago

4π-10 is also in range of cos-1(x)

Tannu Rao 5 years, 3 months ago

Cos(10) can be written as cos(4π-10). Therefore cos-1(cos10)=cos-1(cos(4π-10)) = 4π-10

Ravi Raj 5 years, 3 months ago

10
  • 1 answers

Tannu Rao 5 years, 3 months ago

(1/(7Log7x)).(1/x).7
  • 1 answers

Tannu Rao 5 years, 3 months ago

(e^√2x).(√2)
  • 0 answers
  • 2 answers

Sangeeta Rohilla 5 years, 3 months ago

?

Gaurav Seth 5 years, 3 months ago

CBSE has rationalized the syllabus with the help of suggestions from NCERT and the same has been notified by a new CBSE notification as well.

The CBSE syllabus has been reduced but care has been taken so that the learning outcomes remain the same and the students do not miss out on learning core concepts in various subjects.

Deleted syllabus of CBSE Class 12 Mathematics

 

 

  • 0 answers
  • 1 answers

Sanjeev Kumar Roy 5 years, 3 months ago

1/2
  • 5 answers

Umesh Yadav 5 years, 3 months ago

Cosx

Manish Kumar 5 years, 3 months ago

Cos X

Siddharthm Sm 5 years, 3 months ago

Cosx

Dixit Maurya 5 years, 3 months ago

Cos x

Raghav Kabra 5 years, 3 months ago

Cosx
  • 0 answers
  • 0 answers
  • 3 answers

Ambarish Chatterjee 5 years, 3 months ago

Ans is 2

Diya Mittal 5 years, 3 months ago

We know that slope of line joining two points are y2-y1/x2-x1 hence slope of this line would be 2

Aswathy Jasmi 5 years, 4 months ago

Slope of a line joining points (2,0) & (4,4) =4-0/4-2=4/2=2 The answer is 2 ....plz thank me
  • 5 answers

Nikhil Kumar 5 years, 3 months ago

Binod

Nikhil Kumar 5 years, 3 months ago

Book Maan dekh le

Gaurav Kumar 5 years, 4 months ago

Kon sa

Gaurav Kumar 5 years, 4 months ago

Kon sa

Pranaya Mallik 5 years, 4 months ago

Please elaborate which formulae are you asking about.
  • 2 answers

Shoaib Khan 5 years, 3 months ago

-2xsinx^2cos(cosx^2)

Tannu Jangra 5 years, 4 months ago

_2sin(x)^2cos(cosx^2)
  • 2 answers

Nikhil Kumar 3 years, 9 months ago

Question sahi ✅ likhya kar na

Pawan Kumar 3 years, 9 months ago

0/x-y
  • 0 answers
  • 1 answers

Shreya Rani 5 years, 4 months ago

dy/dx =d [sin(2x/1+x^2)^-1] /dx =-1/sin^2(2x/1+x^2). d(2x/ 1+x^2)/dx =-1/sin^2(2x/1+x^2). [(1+x^2).d(2x)/dx - 2x.d(1+x^2)/dx)] / (1+x^2)^2 =1/sin^2(2x/1+x^2).[(1+x^2).2 - 2x.2x] / (1+x^2)^2 =1/sin^2(2x/1+x^2).(2+2x^2 - 4x^2) /(1+x^2)^2

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