CBSE > Class 11 > Mathematics | CBSE Board | Homework Help | myCBSEguide

No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

If cot A is equal to root ac and cot B =root C/A , tanC =root C/A cube and C =a square +a+1 Proove A +B =C

Posted by Ayushi Singh 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If tan25=x then tan155 - tan115 ÷ (1+ tan 155 tan115) is equal to

Posted by Avinash Avi 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

set pageno 24 qno 7

Posted by Shyam Pandey 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

M.Pragathesh 2002 7 years, 5 months ago

Tennis-35 Only tennis -25

ANSWER

If x varies as the cube of y,and y varies as the fifth root of Z, then x varies as the nth power of Z, where n is

Posted by Priyanshu Pandey 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What are venn diagrams?

Posted by Ankit Kumar Verma 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Yash Thakur 7 years, 5 months ago

Venn diagrams are the diagrams which represent the relationship between sets.

ANSWER

tan 4x = 4tan x ( 1- tan^2x)/1- 6 tan^2 x + tan^4 x

Posted by Deepraj Gole 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

tan 4x= 4tanx (1-tan^2x) 1-6tan^2x + tan4x

Posted by Deepraj Gole 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

How can i easily understand sets

Posted by Rohit Singh 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Aman Kumar 7 years, 5 months ago

By remembering the proofs and formulas...

ANSWER

U'=?

Posted by Ankur Choudhary 7 years, 5 months ago

CBSE > Class 11 > Mathematics

5 answers

Tapan Pandey 7 years, 5 months ago

Phi

Aditya Sinha 7 years, 5 months ago

Pie

Yash Thakur 7 years, 5 months ago

U' = null set and (null set)' = U

Tripti Sharma 7 years, 5 months ago

null set or fie

Nancy Rajput 7 years, 5 months ago

its may be null set

ANSWER

1+tanA÷1+tanA=cot A+1 ÷cot A-1

Posted by Mouli Jain 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Aman Kumar 7 years, 5 months ago

Hey, cbse walo.... Plz computer science mai bhi videos rakhye... Plz keep the videos for computer science.....

ANSWER

330 : 195 find LCM

Posted by Vivek Raghuvanshi 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Vivek Raghuvanshi 7 years, 5 months ago

22:13

ANSWER

Find the modulus and argrument of complex number : z=-√3+i

Posted by Ashish Sharma 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Sin((n+1)x)×sin((n+2)x)+cos((n+1)x)×cos((n+2)x)

Posted by Hemant Prajapati 7 years, 5 months ago

CBSE > Class 11 > Mathematics

2 answers

Yash Thakur 7 years, 5 months ago

sin [(n+1)x)] × sin [(n+2)x] + cos [(n+1)x]×cos[(n+2)x]=? SOLUTION------ sin (nx+x) × sin (nx+2x) + cos (nx+x) × cos (nx+2x) = cos (nx+2x) × cos (nx+x) + sin (nx+2x) × sin (nx+x). We know that--- cosA × cosB + sinA × sinB = cos (A-B) So we put value of A is (nx+ 2x) and value of B is (nx+x). cos (A-B)= cos ( nx+2x -nx-x )= cos (2x-x) = cos x ( Ans.)

Pranavam Pranavam 7 years, 5 months ago

Lhs. It is in the form of cos(x+y) Cos ((n-1)x-(n+2)x) Cos (x(n-1-n-2)) Cos(x(-1) Cos(-x) Cos x

ANSWER

Tan6 tan66 tan72 tan48 =1

Posted by Saumya Dixit 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

The value of X satisfying 18^4x-3=(54root2)^3x-4 is

Posted by Aditya Sinha 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is the range of x2-5/x-5

Posted by Dev Durgapal 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If b & c are odd integers, then the equation x2+bx+c = ?

Posted by Saurabh Jaiswal 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

The minute hand of the watch is 1.5cm long. How far does its tip move in 40 minutes use. Pie =3.14 .

Posted by Sakthi Kumar 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Ankit Dahiya 7 years, 5 months ago

Ncert eg. No 4

ANSWER

The angles of a triangle are in A.P such that the greatest angle is 5 times the least . Find the angles in radians

Posted by Sakthi Kumar 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

the sum of p terms of an a.p is q and the sum of first q term is p , then find the sum of first (p+q ) terms.

Posted by Anand Raj 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If A = cos2θ + sin4θ for all values of θ, then prove that 34 ≤ A ≤ 1.

Posted by Ayush Rastogi 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Muktinath Pandey 7 years, 5 months ago

Check your question firstly

ANSWER

Evaluate : - (i.) sin75° and (ii.) tan15°

Posted by Yash Thakur 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Muktinath Pandey 7 years, 5 months ago

i. Sin (30+45)=sin30cos45+cos30sin45 =1/2×1/√2 + √3/2×1/√2=1/2√2 + √3/2√2 =(1+√3)/2√2=(√2+√6)/4

ANSWER

R×tanA ×2 where R=609 find tanA

Posted by Parwez Shamsh 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

When is router used

Posted by Harshdeep Upadhyay 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

P.T. p(AΠB)=p(A)ΠP(B)

Posted by Vignesh Vigu 7 years, 5 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Prove that A⊆B,B⊆C and C⊆A ⇒ A=c

Posted by Ishika Padhaniya 7 years, 5 months ago

CBSE > Class 11 > Mathematics

2 answers

Tapan Pandey 7 years, 5 months ago

Question is wrong miss Ishika

Smarty Akki 5 years, 8 months ago

Mst qustion h????

ANSWER

Find the value of m (2m+1)x^2+2(m+3)x+(m+5) has equal roots

Posted by Revuri Harshith 7 years, 5 months ago

CBSE > Class 11 > Mathematics

2 answers

Revuri Harshith 7 years, 5 months ago

Wrong answer

Revuri Harshith 7 years, 5 months ago

868

ANSWER

Sin75+cos75

Posted by Jatin Dhanuka 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Sakshi Sharma ??️??️??️ 7 years, 5 months ago

[Sin(45+30)] + [cos(45+30)]

ANSWER

Evaluate--- sin(-1395°)

Posted by Yash Thakur 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Nikhil Agarwal 7 years, 5 months ago

Sin -1395 Sin (-360*3 +45) Sin 45 1/root2

ANSWER

Why negative numbers are not prime numbers

Posted by Rudraksh Bohra 7 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

The Raj 7 years, 5 months ago

Why -2 is not whole no. Or natural numbers

ANSWER

Page 221 of 380

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Google Play

Download myCBSEguide App