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

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

Ask Question

Which term of the AP : 3,15,27,39,... will be 132 more than its 54th term?

Posted by Vaishali ;) ?? Yadav 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Paritosh Suman 5 years, 1 month ago

65th term

0Thank You

Hunter Allies 5 years, 1 month ago

1Thank You

A K47 5 years, 1 month ago

a = 3, d = 12 first find 54th term so n = 54 . By formula An = a +(n - 1) d so An = 3+(54-1)12 = 639. To find the term from question, 639+132= 771. By using same formula, 771=3+(n-1)12 we get n = 65.

0Thank You

ANSWER

nirmal1234atla

Posted by Lovepreet Atla 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Kirti Malik 5 years, 1 month ago

Which type of question is this?

0Thank You

ANSWER

How cutte were formed?

Posted by Chesta Choudhary 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Kirti Malik 5 years, 1 month ago

What???

1Thank You

ANSWER

What is triangle congratulations property

Posted by Sahil Ansari 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 1 month ago

CPCT Rules in Maths

The full form of CPCT is Corresponding parts of Congruent triangles. Congruency can be predicted without actually measuring the sides and angles of a triangle. Different rules of congruency are as follows.

SSS (Side-Side-Side)
SAS (Side-Angle-Side)
ASA (Angle-Side-Angle)
AAS (Angle-Angle-Side)
RHS (Right angle-Hypotenuse-Side)

1Thank You

ANSWER

Triangles theorem 6.7

Posted by Jyoti Prakash Jena 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Atul Kumar 5 years, 1 month ago

if a perpendicular is drawn from the vertex of the right angle of a right triangle to the hypotenuse then the triangle of the both sides of the perpendicular are similar to the whole triangle and to each other

0Thank You

Ambika Ambika 5 years, 1 month ago

Ans :- if a perpendicular is drawn from the vertex of the right angle of a right triangle to the hypotenuse then the triangle of the both sides of the perpendicular are similar to the whole triangle and to each other

1Thank You

ANSWER

272

Posted by Arnav Singh 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Atul Kumar 5 years, 1 month ago

Ka ha ya

1Thank You

ANSWER

5 year old kid terms exam questions

Posted by Sonusujal Kumar 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Mukesh Negi 5 years, 1 month ago

( sin 30 t cos 30 ) ‐ ( sin 60 + cos 60 )

0Thank You

ANSWER

A/(ax-1)+ b/(bx-1)=(a+b)

Posted by Anil Kumar 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The multiplicative inverse of zero Adoes not exist B1 C D0

Posted by Asmita Belapurkar 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Atul Kumar 5 years, 1 month ago

Not exist

0Thank You

Pragati Verma 5 years, 1 month ago

A) does not exist

1Thank You

ANSWER

A boat covers 14kms in upstream and 20kms downstream in 7hrs also it covers 22kms upstream and 34kms downstream in 10hrs .find the speed of the boat in still water and of that the stream

Posted by Stuti Worah 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 1 month ago

Let, the speed of a boat in still water = x km/hr

and speed of the stream = y km/hr

→ Speed of a boat in upstream = (x - y) km/hr and

Speed of a boat in downstream = (x + y) km/hr

We know that,

Time = Distance /Speed

According to the conditions in the question, we get

4Thank You

ANSWER

2 +253828+856-3883√8

Posted by Krishna Krishna 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Keshav Gupta 5 years, 1 month ago

Why did Gandhiji withdraw the Non-Cooperation Movement? *

0Thank You

ANSWER

X2-4X-77=0

Posted by Haripriya Paradeshi 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Shridhar Sankonatti 5 years, 1 month ago

0Thank You

Yogita Ingle 5 years, 1 month ago

x²-4x-77 = 0

x²-11x+7x-77 = 0 (splitting the middle term)

x(x-11)+7(x-11) = 0

(x+7)(x-11) = 0

x + 7 = 0 and x - 11 = 0

x = -7 and x = 11

1Thank You

Sarans Raj 5 years, 1 month ago

If ab=13.3cmac=11.9cm and ec=5.1cm find ad

0Thank You

ANSWER

1+333333

Posted by Chirag Gupta 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chirag Gupta 5 years, 1 month ago

333334

4Thank You

ANSWER

write all the trigonometric identities and prove that (1/ sec^2 theta - cos ^2 theta ( + )1/ cosec^2 theta - sin^2 theta) sin^2 theta. cos ^2 theta = 1 - sin^2 theta. cos^2 theta / 2+ sin^2 theta . cos^2 theta by using trigonometric identities

Posted by Ananya Pareek 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Solve for x: 2 * [x ^ 2 + 1/(x ^ 2)] - 9[x + 1/x] + 14 = 0

Posted by Pratyaksh Jain 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The sum of a two digit number and the number obtain by reversing the digit is 66 if the digits of the number differ by 2.find the number

Posted by Priyanka Patil 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Shekharxg Singh 5 years, 1 month ago

0Thank You

Gaurav Seth 5 years, 1 month ago

Let’s assume the digit at unit’s place as x and ten’s place as y. Thus from the question, the number needed to be found is 10y + x.

From the question it’s told as, the two digits of the number are differing by 2. Thus, we can write

x – y = ±2………….. (i)

Now after reversing the order of the digits, the number becomes 10x + y.

Again from the question it’s given that, the sum of the numbers obtained by reversing the digits and the original number is 66. Thus, this can be written as;

(10x+ y) + (10y+x) = 66

⇒ 10x + y + 10y + x = 66

⇒ 11x +11y = 66

⇒ 11(x + y) = 66

⇒ x + y = 66/11

⇒ x + y = 6………….. (ii)

Now, we have two sets of systems of simultaneous equations

x – y = 2 and x + y = 6

x – y = -2 and x + y = 6

Let’s first solve the first set of system of equations;

x – y = 2 …………. (iii)

x + y = 6 ………….. (iv)

On adding the equations (iii) and (iv), we get;

(x – y) + (x + y) = 2+6

⇒ x – y + x + y = 8

⇒ 2x =8

⇒ x = 8/2

⇒ x = 4

Putting the value of x in equation (iii), we get

4 – y = 2

⇒ y = 4 – 2

⇒ y = 2

Hence, the required number is 10 × 2 +4 = 24

Now, let’s solve the second set of system of equations,

x – y = -2 …………. (v)

x + y = 6 ………….. (vi)

On adding the equations (v) and (vi), we get

(x – y)+(x + y )= -2 + 6

⇒ x – y + x + y = 4

⇒ 2x = 4

⇒ x = 4/2

⇒ x = 2

Putting the value of x in equation 5, we get;

2 – y = -2

⇒ y = 2+2

⇒ y = 4

Hence, the required number is 10×4+ 2 = 42

Therefore, there are two such possible numbers i.e, 24 and 42.

1Thank You

ANSWER

This year sample paper?

Posted by Abhishek Patil 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

: (ᵔᴥᵔ) ???? (ᵔᴥᵔ) 5 years, 1 month ago

Sample paper of this year are available on this app..below the homework help section....?

0Thank You

ANSWER

If alpha and beta are the zeros of the quadratic polynomial f(x)=x^2-px+q then find (i)alpha square +beta square (ii)1÷alpha+1÷beta

Posted by Prakrathi Hebri 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Prakrathi Hebri 5 years, 1 month ago

0Thank You

Gaurav Seth 5 years, 1 month ago

Given,

α and ß are the zeroes of polynomial x² - px + q.

In this quadratic equation,

Coefficient of x² ( a ) = 1

Coefficient of x( b ) = -p

Constant term ( c ) = q.

We have,

⇒ Sum of zeroes = -b/a

⇒ α + ß = - ( - p ) / 1

∴ α + ß = p.

⇒ Product of zeroes = c/a

⇒ αß = q/1 = q

Now,

⇒ ( α + ß )² = α² + ß² + 2 αß

⇒ ( p )² = α² + ß² + 2 q

⇒ p² = α² + ß² + 2 q

∴ α² + ß² = p² - 2q

2Thank You

ANSWER

Koi i n s t a pr h kya

Posted by Aditya Sharma 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

find the value of k for which the quadratic equation 2x^2+kx+2=0 has equal roots

Posted by Sujit Singh 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 1 month ago

The values of k = 4.

Given:

Quadratic equation has equal roots.

To find:

The values of k

Explanation:

General format of quadratic equation is .

If the roots of quadratic equation is equal then,

Where,

a = coefficient of x²

b = coefficient of x

c = constant term.

b² - 4ac =0

Comparing the quadratic equation

b = k a=2 c=2

k² - 4×2×2 = 0

k² = 16

k =

k = 4

Therefore, the values of k = 4 if roots are equal.

2Thank You

ANSWER

If 4 tan =3,evaluate 4 sin-cos+1 4cos+cos-1

Posted by Megha Jangir 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 1 month ago

4tan = 3 ⇒ tan = 3/4
we know, tan = perpendicular/base
so, after comparing , perpendicular = 3 and base = 4
∴ hypotenuse = √(3² + 4²) = 5
now, sin = perpendicular/hypotenuse = 3/5
cos = base/hypotenuse = 4/5

now, (4sin - cos + 1)/(4sin + cos - 1)
= (4 × 3/5 - 4/5 + 1)/(4 × 3/5 + 4/5 - 1)
= (12 - 4 + 5)/(12 + 4 - 5)
= 13/11

1Thank You

ANSWER

If xy 180 and hcf xy 3 then find like.c.m

Posted by Anushka ................. 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Tarannum Jahan 5 years, 1 month ago

Given:HCF(xy)=3 LCM =? xy=180 SOLVE: we know that LCM×HCF=PRODUCT OF TWO NUMBER LCM×3=XY LCM×3=180 LCM=180/3 LCM=60 Therefore the LCM(xy)is 60 Answer

3Thank You

ANSWER

2x2 + 5x + 6 = 0

Posted by Aditya Singh 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Ashutosh Singh 5 years, 1 month ago

-2

0Thank You

ANSWER

What is a composite number?

Posted by Priya Mishra 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years, 1 month ago

In Mathematics, Composite numbers are the numbers which have more than two factors, unlike prime numbers which have only two factors, i.e. 1 and the number itself. These numbers are also called composites.

All the natural numbers which are not prime numbers are composite numbers as they can be divided by more than two numbers. For example, 6 is composite because it is divisible by 1, 2, 3 and even 6, such as:

6÷1 = 6
6÷2 = 3
6÷3 = 2
6÷6 = 1

1Thank You

Shreya Ojha 5 years, 1 month ago

Composite no. Is generally a whole number which we obtain when we multyply 2 numbers .For example smallest composite no.is 4(2*2) not 2(2*1) becoz it's a prime composite no. Have at least one factor other 1 and itself .

0Thank You

ANSWER

Find the point on x-axis which is equal distance from (2,-5) and (-2,9)?

Posted by Taniya 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Chandu G 5 years, 1 month ago

(-7,0)

0Thank You

Taniya 5 years, 1 month ago

Please answer the question ???

0Thank You

Rajveer Singh 5 years, 1 month ago

0Thank You

ANSWER

Please give me class 10 ex14.1 q2 sol using direct method????????

Posted by Gautam Iyer 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chandu G 5 years, 1 month ago

Say the question

1Thank You

ANSWER

Please help me in taking LCM of fraction 12/5 - 4/5 or Tell me that how to take HCF.

Posted by Akshat Saxena 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chandu G 5 years, 1 month ago

If the denominator is same we don't want to take LCM or HCF

0Thank You

ANSWER

Sum of the area of two squares is 468 meters square .If the difference of their perimeter is 24 m, find the sides of the squares?

Posted by Taniya 5 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Chandu G 5 years, 1 month ago

Ur welcome ☺☺

0Thank You

Taniya 5 years, 1 month ago

Thank you so much ??.

0Thank You

Chandu G 5 years, 1 month ago

. Let perimeter of first square = x metres Let perimeter of second square = (x + 24) metres Length of side of first square = metres {Perimeter of square = } Length of side of second square = metres Area of first square = side × side = Area of second square = According to given condition: ⇒ ⇒ ⇒ = ⇒ = 7488 ⇒ = 0 ⇒ = 0 Comparing equation =0 with standard form , We get a = 1, b =24 and c = −3456 Applying Quadratic Formula ⇒ ⇒ ⇒ ⇒ x = 48, −72 Perimeter of square cannot be in negative. Therefore, we discard x=−72. Therefore, perimeter of first square = 48 metres And, Perimeter of second square = x + 24 = 48 + 24 = 72 metres ⇒ Side of First square = And, Side of second Square =

0Thank You

Chandu G 5 years, 1 month ago

Side of 1st square is 18m and side of 2nd square is 12m

0Thank You

ANSWER

A a rectangular field is Dedh sau metre and the 16 metre to cyclic coronavirus start to get the Kana cycle the speed of 20 metre per minute and 28 metre per minute after how many minutes will then we meet again at a starting point concept biography

Posted by Vikash Kumar 5 years, 1 month ago

CBSE > Class 10 > Mathematics