CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Go and search in youtube you will get all the sums with the right answers and in different languages also Write-maths chapter 14 sums answer and explanation ?

1Thank You

Aviral Goyal 6 years, 2 months ago

It is the easiest after probability

0Thank You

Surendar Kumar 6 years, 2 months ago

14th chapterpage no 260

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ANSWER

For what value of k will be the equation 2x+ky=1 , 3x-5y =7 has unique solution

Posted by Jaspreet Jaspreet 6 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Aviral Goyal 6 years, 2 months ago

All real values except -10/3

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Bhãnû Yäđäv 6 years, 2 months ago

10/3 is not equal to k

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Shubhi Pandey 6 years, 2 months ago

2/k=3/5 15=3k K=5

3Thank You

Shubhi Pandey 6 years, 2 months ago

Unique solution means when a1/a2 is not equals to b1/b2 therefore

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ANSWER

Find the value of a and b for which the following system of equation has infinite many number of solution:- 2x-3y=7 , (a+b)x -(a+b-3)y =4a+b

Posted by Jaspreet Jaspreet 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Aviral Goyal 6 years, 2 months ago

a=-5 and b=-1

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Shubhi Pandey 6 years, 2 months ago

Infinite solution means a1/a2=b1/b2=c1/c2

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ANSWER

TSA OF FRUSTRUM LSA OF FRUSTRUM VOLUME OF FRUSTRUM FORMULAS

Posted by Olivia Gonsalves 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Diksha? 6 years, 2 months ago

You will get them in the summary of this ch of ncert book

5Thank You

ANSWER

In an ap if d,=4, n=3 an=10then a is

Posted by Jani Rai 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Shiny Chaturvedi 6 years, 2 months ago

an=a+(n-1)d 10=a+(3-1)4 10=a+2×4 10=a+8 10-8=a 2=a

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Neetu Srivastava 6 years, 2 months ago

By formula An=a+(n-1)d An=10 N=3 D=4 So by putting value in formula 10=a+(3-1)4 10=a+(2)4 10=a+8 A=10-8 A=10 So the first term (a) is 10

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Shubhi Pandey 6 years, 2 months ago

an=a+(n-1)d 10=a+(3-1)4 10=a+(2×4) 10-8=a a=2

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ANSWER

Xsin^2A+Ycos^2A=sinA×cosA and XsinA=YcosA . Prove that X^2+Y^2=1

Posted by Vimal Singh 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Aviral Goyal 6 years, 2 months ago

Bro X^2 +Y^2=0 not 1

1Thank You

ANSWER

What is the value of sin120

Posted by Nik . 6 years, 2 months ago

CBSE > Class 10 > Mathematics

7 answers

Aviral Goyal 6 years, 2 months ago

Sin120=sin60=root3/2

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Diksha? 6 years, 2 months ago

Sin(90-x) =Cosx

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Tanya Singh 6 years, 2 months ago

Yes diksha, what's wrong?

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Tanya Singh 6 years, 2 months ago

Sin (90+x)=cos x, So sin(90+30)=cos 30, So sin 120=√3/2

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Tanya Singh 6 years, 2 months ago

√3/2

1Thank You

Yogita Ingle 6 years, 2 months ago

From the trigonometric formulas,

As we know that, sin (90 + x) = cos x

Then as peer the given,

Sin ( 90 + 30) = cos 30

{tex}cos 30 = \frac{\sqrt3}{2}{/tex}
Therefore, the value of sin 120 degree is {tex}\frac{\sqrt3}{2}{/tex}.

1Thank You

Divyanshu B 6 years, 2 months ago

Maybe add sin 90 + sin 30.

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ANSWER

The angle of depression of the base of a building with a height of 50m from the top of the tower are 30° and 60° respectively. Find the height of tower?

Posted by Wazeer Ali 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Aviral Goyal 6 years, 2 months ago

200/3m

0Thank You

Tanya Singh 6 years, 2 months ago

Question thoda azeeb lag raha hai ek bar question check karo

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ANSWER

What is class size

Posted by Nik . 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Bhãnû Yäđäv 6 years, 2 months ago

no.

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Bhãnû Yäđäv 6 years, 2 months ago

difference between lower limit-upper limit

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Miss. 1234 6 years, 2 months ago

Upper limit - Lower limit

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ANSWER

The top of a tower of height 60 m is at an elevation of ∅ at P is 20 root 3 m from the foot of the tower find ∅ Step by step answer needed

Posted by Vedeesha 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Aviral Goyal 6 years, 2 months ago

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ANSWER

When the inclination of the sun is 60 the shadow of a man is of length root 3/2 m.find the height of the man

Posted by Vedeesha 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Tanya Singh 6 years, 2 months ago

Let AB be the height of man and AC be the length of shadow (Draw ∆abc by yourself ) So AB/BC =Tan60°. So AB= BC ×tan60° So AB= √3/2 ×√3 So AB = 3/2

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ANSWER

Step deviation method.

Posted by Diksha? 6 years, 2 months ago

CBSE > Class 10 > Mathematics

26 answers

Aviral Goyal 6 years, 2 months ago

A+sigmafu/sigma f×h where u=x-A/h

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___ Alone _____ 6 years, 2 months ago

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Santhosh Thegreat 6 years, 2 months ago

Sigma fixi/Sigma fi

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