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

f(x) = cosX/1+sinX f'(x) = (1+sinX)×(-sinX) - cosX(cosX) --------------------------------------------------- (1+sinX)^2 [By quotient rule] = -sinX - sin^2X - cos^2X --------------------------------------- (1+sinX)^2 = -sinX - 1 --------------- (1+sinX)^2 = -1 ---------------- (1+sinX)

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Using principle value eveluate cos inverse (cos 2π/3)+sin inverse (sine 2π/3)

Posted by Ankit Balhara 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Bharat Sukhija 7 years, 1 month ago

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Which book and sample paper of mathematics is best for board exams ???

Posted by Manshvi Goyal 5 years, 10 months ago

CBSE > Class 12 > Mathematics

4 answers

Santoshee Prajapati 7 years, 1 month ago

First complete ncert maths

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Deepak Jindal 7 years, 1 month ago

Xam idea and Ncert.

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Swastik Singh 7 years, 1 month ago

Chapterwise is also a good option for the preparation of board

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Ritik Thakur 7 years, 1 month ago

you should prefer Xam idea for your preaparation of 12th. You will find all types of model paper in it as per the syllabi and marking schemes. ?

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Integration| cosπx|

Posted by Tanish Bhutani 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Harshit Singh 7 years, 1 month ago

complete the question tell the limit

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Tan invers x ka squr plus cot invers x ka squr = π/4 solve for x

Posted by Vansh Bansal 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Ways of integration

Posted by Geeta Sharma 7 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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both stands for union or intersection?

Posted by Jeetu Kumar 7 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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{sin x-cosx,. If x not equal to π/2 -1,. If x=0

Posted by Kashish Khandelwal 7 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Angle b/w a×b nd b×a in 3d

Posted by Komal Agarwal 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Sagar Saini 7 years, 1 month ago

180

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Sin inverse root 3 plus 1 over 2root2

Posted by Hemant Gupta 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Find the interval in which the function f is given by f(x)=x³+1/x³ is strictly increasing

Posted by Vinayak Lagwal 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Bharat Sukhija 7 years, 1 month ago

(-infinity to -1)

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Find principal value of cos–¹(cos2π\3) + sin–¹(sin2π/5)

Posted by Ritviz Prakash 7 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Bharat Sukhija 7 years, 1 month ago

16π/15

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Vanshika Arora 7 years, 1 month ago

2π/5

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Venn diagram

Posted by Rohan Raj 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Urn a contains 1 white ,2 black and 3 red ball. Urn be contains 2 white 1black and 1 red balls and urn c contains 4 white 5 black and 3 red balls one urn is selected at random and two balls are drawn late e be the event that the ball drawn are one white and one red and E1,E2,E3 be event that the selected urns are a,b,and c respectively. Now find the following. (1) P(E1) (2) P(E2) (3) P(E/E3) (4) P (E/E1)

Posted by Sandeep Pramanik 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Bharat Sukhija 7 years, 1 month ago

1/3 1/3 2/11 1/5

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Let f:R-->R be defined as f(x) = 10x + 7. Find the function g: R-->R such that gof = fog= Ir (i.eLetter I with subscript r).

Posted by Shemin Majeed 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Bharat Sukhija 7 years, 1 month ago

x-7/10

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Intregal of sinx

Posted by Ravi Chaudhary 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Komal Dhingra 7 years, 1 month ago

-cos x + c

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if a vector + b vector + b vector is equal to zero show that a vector cross b vector is equal to b vector cross c vector is equal to c vector cross a vector

Posted by Ankit Patel 7 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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integration of 1 by 1+ sin x

Posted by Ruchika Arora 7 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Nehal Mehta 7 years, 1 month ago

=1/1+sinx × 1-sinx/1-sinx [rationalising] =1-sinx/1-sin^2x = 1-sinx/cos^2x = 1/cos^2x - sinx/cos^2x = sec^2x -secxtanx = tanx - secx + c [integrating both terms]

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Dikshnat Yadav 7 years, 1 month ago

X minus cosx

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