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How to know that between 9π/4 and 3π cosine X is Positive or negative

Posted by Vibhash Pandey 7 years, 10 months ago

1 answers

Chandrashekhar Wankhede 7 years, 10 months ago

9pi/4 - 2pi = (pi/4) = 45 degree, 3pi -2pi = pi = 180 degree, Hence by imagining revolving line in XY plane , cos X is positive from 45 to 90 but negative from 90 onwards till 180 degree..

1Thank You

ANSWER

What is the perimeter of a rectangle whose length and Breadth are 5cm and 2cm respectively

Posted by Sanjeev Kumar 7 years, 10 months ago

CBSE > Class 12 > Mathematics

5 answers

Mimansha Rawat 7 years, 10 months ago

Ans is 2(l+b) i.e 14 Plz yaar grown up now Don't ask such silly questions

0Thank You

Shivanshu Yadav 7 years, 10 months ago

Very good beta ???

2Thank You

Muskan Bhardwaj 7 years, 10 months ago

Ye 3rd class ka ques hai ??

1Thank You

Muskan Bhardwaj 7 years, 10 months ago

1Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

God level question.....noone can answer this.....????

1Thank You

ANSWER

Integration factor of (1+y^)dx - (tan^-1-x)dy

Posted by Akmal Khan 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Q. Decompose the vector 6î-3j-6k into vectors which are parallel and perpendicular to the vector î+j+k.

Posted by Anuj Goyal 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

It is non biodegradable and non decomposable

2Thank You

ANSWER

Evaluate integration of xsq/(xsq+1)(xsq+4)

Posted by Prabhat Ranjan 7 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Prabhat Ranjan 7 years, 10 months ago

Sir what is answer

1Thank You

Chhavi Verma 7 years, 10 months ago

Use partial fraction

2Thank You

ANSWER

Using differential, find the approximate value of 3√127.

Posted by Rishu Anand 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Log

Posted by Chandan Mishra 7 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Piche se daalta hu mu se nikalta hai

2Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Mera long hai

1Thank You

ANSWER

Prove that. 4 ( cot-¹ 3 + cosec-¹ √5 ) = π .

Posted by Anay Patidar 7 years, 10 months ago

CBSE > Class 12 > Mathematics

4 answers

Anay Patidar 7 years, 10 months ago

No its right ...... Its correct

0Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

2(2tan-¹)...... 2tan-¹x ka formula use karo

1Thank You

Anay Patidar 7 years, 10 months ago

But its not correct because on solving its 4 tan-¹ =tan- ¹ and they are not equal

0Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Convert cot -1. And cosec-1 to tan-1 Put pi as tan -¹(1)

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ANSWER

Ncert ki 7.3 ex samjh na aa rhi bilkul bhi ki karu?

Posted by Ayush Gupta 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Himza Jangra 7 years, 10 months ago

Is exercise ko krne s phle ek baar 11 k formula revise KR lo fir ho jaygi

1Thank You

ANSWER

What is the integration of 1/sinx +cosx ?

Posted by Aryan Kumar Singh 7 years, 10 months ago

CBSE > Class 12 > Mathematics

3 answers

Mimansha Rawat 7 years, 10 months ago

Given solution is also correct

1Thank You

Mimansha Rawat 7 years, 10 months ago

Put identity and then solve

1Thank You

Lekha Raj 7 years, 10 months ago

Convrt it into tanx/2 form and solve it by substitution.

0Thank You

ANSWER

Prove 2 tan-¹ [√a-b/ a+ b tan x/2] = cos-¹ [b+a cos x/ a+b cos x ]

Posted by Anay Patidar 7 years, 10 months ago

CBSE > Class 12 > Mathematics

4 answers

Mimansha Rawat 7 years, 10 months ago

Itni sari square root se i am getting confused

0Thank You

Mimansha Rawat 7 years, 10 months ago

I am unable to understand the question properly

0Thank You

Mimansha Rawat 7 years, 10 months ago

Yep

0Thank You

Lekha Raj 7 years, 10 months ago

It's very lengthy..........

0Thank You

ANSWER

Which one is better to solve sample papers or last year's question paper's for all the 5 subjects???

Posted by Abc Xyz 7 years, 10 months ago

CBSE > Class 12 > Mathematics

3 answers

Mimansha Rawat 7 years, 10 months ago

Solve last year's paper

1Thank You

Aisha Grewal 7 years, 10 months ago

Again abc xyz

1Thank You

Hina Siddiqui 7 years, 10 months ago

Both

1Thank You

ANSWER

I confused probability

Posted by Sathiya Priya 7 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Mimansha Rawat 7 years, 10 months ago

Do it from rd sharma .....ur confusion would get cleared

0Thank You

Mitthu Singh 7 years, 10 months ago

Me too

1Thank You

ANSWER

I confused in probability

Posted by Diya Kumari 7 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Shivanshu Yadav 7 years, 10 months ago

Hmm m b

2Thank You

Aisha Grewal 7 years, 10 months ago

I also

1Thank You

ANSWER

I'm confused in probability... ???

Posted by Aisha Grewal 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is bionomial

Posted by Deepak Jaiswal 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Is order matter in question of probability

Posted by Harsh Singh Thakur 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integrate (cosax-sinbx)^2

Posted by Aakriti Agrawal 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is integration og 1plus sinx divided by 1 plus cos square x

Posted by Shivesh Trivedi 7 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Chhavi Verma 7 years, 10 months ago

Split numerator into two parts Convert 1st part into sec2x and in 2nd take cosx=t then integrate

0Thank You

Harsh Singh Thakur 7 years, 10 months ago

Bhai first break it then let t = cosx then you will and formula based question bro its simple

0Thank You

ANSWER

Class 12 ka maths paper come from ncert what is the% 0f it

Posted by Hariom Shakya 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Harsh Singh Thakur 7 years, 10 months ago

Bhai 75%

1Thank You

ANSWER

Integration of tan^x(x)dx

Posted by Animesh Kumar Tiwari 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Shivanshu Yadav 7 years, 10 months ago

I late method

2Thank You

ANSWER

Differentiate e√tan√tanex

Posted by Ashi Verma 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find the equation of normal the curve x square = 4y which passes through the point 1, 2

Posted by Prince Singh 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

4 sin-1(cos-1 x) = π find value of x

Posted by Himza Jangra 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Bayes theorem

Posted by Ayush Kumar 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is the solution of question 5 in inverse trignometic function imp questions cos-¹ [ 3/5 cos x + 4/5 sin x ]

Posted by Anay Patidar 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Siddharth Basu 7 years, 10 months ago

Take 3÷5 as cos¥ and ultimate ly 4÷5 as sin¥ then at last apply cos(¥-x) rule

1Thank You

ANSWER

x=e^(x/y), prove that dy/dx=(x-y)/xlogx

Posted by Rahul Jangir 7 years, 10 months ago

CBSE > Class 12 > Mathematics

3 answers

Siddharth Basu 7 years, 10 months ago

In simple words convert e^x÷y into e^x-y and shift e^y to lhs and x to denominator of e^x and then diff.

1Thank You

Rahul Jangir 7 years, 10 months ago

Its from differentiation topic

0Thank You

Siddharth Basu 7 years, 10 months ago

Do variable separable and then differentiate art x

0Thank You

ANSWER

Tan

Posted by Sanjay Suyal 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integration of sine inverse x

Posted by Sagar Mittal 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Ritesh Ray 7 years, 10 months ago

Apply intergation by parts.

3Thank You

ANSWER

integration of |xcospiex|dx = ?

Posted by Akash Gupta 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Aditya Raj 7 years, 10 months ago

Apply integration by parts

0Thank You

ANSWER

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