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What is the standard form of quadratic equations?

Posted by Rishabh Dubey 8 years, 2 months ago

CBSE > Class 11 > Mathematics

2 answers

Pnp Jain 8 years, 2 months ago

ax²+bx+c=0

1Thank You

Deepti Choudhary 8 years, 2 months ago

ax2 +bx+c

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1-cosx is equal to what

Posted by Rajvir Dhami 8 years, 2 months ago

CBSE > Class 11 > Mathematics

0 answers

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Represent root 11 on number line

Posted by Sonam Kumari 8 years, 2 months ago

CBSE > Class 11 > Mathematics

0 answers

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Find the ARGUMENT

1-iroot3/1+iroot3

Posted by Srishti Rachna 8 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Prashant Bhagri 8 years, 2 months ago

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ANSWER

Find modulus of complex number of 2-5i

Posted by Soni Soni 8 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Ankit Pradhan 8 years, 2 months ago

√4+√25=√29

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How to factorise cubic equations

Posted by Rinu Tanwar 8 years, 2 months ago

CBSE > Class 11 > Mathematics

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if sina +sinb=x then sina_Sinb will be what

Posted by Vinay Jaat 8 years, 2 months ago

CBSE > Class 11 > Mathematics

0 answers

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2×6×10×14×-------n factors=2n!/n!

Posted by Mansi Gupta 8 years, 2 months ago

CBSE > Class 11 > Mathematics

0 answers

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11class

Posted by Ujjawal Panday 8 years, 2 months ago

CBSE > Class 11 > Mathematics

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Find the orthocenter of the triangle formed by the lines x-y+1=0. ,x-2y+4=0 ,9x-3y+1=0

Posted by Bharat Marwaha 8 years, 2 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

n(n+1)(n+5) is a multiple of 3

Posted by Mini Sahu 8 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Rahul Rawat 8 years, 2 months ago

1. Let n=1 1 (1+1)(1+5) 12 which is divisible by 3 2. n=m m (m+1)(m+5) =3x (m+5)=3x/m(m+1)................................................1 3. n=m+1 (m+1)(m+2)(m+5) 3x/m (m+1)×(m+1)(m+2) hence divisible by 3

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Write numberof terms in the expansion of (1+2x+x²)¹⁰

Posted by Sachith Kanna 8 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Aman Kumar 8 years, 2 months ago

(x+1)^20

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Cos X - 1 ____________ = 0 prove X.

Posted by Priyanka Soam 8 years, 2 months ago

CBSE > Class 11 > Mathematics

2 answers

Aman Kumar 8 years, 2 months ago

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Yogesh Rupireddy 8 years, 2 months ago

X=0

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2^1000

Posted by Aman Kumar 8 years, 2 months ago

CBSE > Class 11 > Mathematics

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Sin2x+cot2x=2

Posted by Kirti Bansal 8 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Aman Kumar 8 years, 2 months ago

45°

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Cos24°+cos55°+cos125°+cos204°+cos300°=???

Posted by Raminder Singh 8 years, 2 months ago

CBSE > Class 11 > Mathematics

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Solve sin 2x -sin4 x+sin 6x =0

Posted by Xavier Kujur 8 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Rahul Poddar 8 years, 2 months ago

Sin2x-sin4x+sin6x=0, sin2x+sin6x=sinA, -2sin4xcos2x=sinA, -2cos2x=1, cos2x=-1/2,cos2x=cos60°,2x=60°, x=30°

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Cos x =1/2

Posted by Xavier Kujur 8 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Aman Kumar 8 years, 2 months ago

Cos x= sin 30° Or. Cos x = sin(90-60)° Or. Cos x = Cos60 Hence x=60°

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If 2sin²x=3cosx if the value of x

Posted by Shanti Appari 8 years, 2 months ago

CBSE > Class 11 > Mathematics

2 answers

Rahul Poddar 8 years, 2 months ago

Here a mistake cosx=cos60°, x=60°

2Thank You

Rahul Poddar 8 years, 2 months ago

Solving this you get equation 2cos^2x+3cosx-2=0,2cos^2x+4cosx-cosx-2=0,2cosx (cosx+2)-1 (cosx+2)=0, here 2cosx-1=0, cosx+2=0 it is not possible so,2cosx=1, cosx=1/2, cosx=cos45°, x=45°

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Three circular coins each of radii 1 cm are kept in an equilateral triangle so that all the three coins touch each other and qlso the sides of the triangle. Area of the triangle??

Posted by Ritika Bhardwaj Ritika 8 years, 2 months ago

CBSE > Class 11 > Mathematics