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

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0Thank You

Ayush Dubey 1 year, 9 months ago

2+3

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ANSWER

Practice for mental maths important questions

Posted by Ishta Mahour 1 year, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

S Aashay 1 year, 9 months ago

we know!!

0Thank You

ANSWER

Under root cosecA -1 upon cosecA + 1 under root cosecA+1 upon cosecA -1 = 2sec A

Posted by Girjesh Gupta 1 year, 9 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Under root cos sec a minus 1 upon cosec + 1 + √2 sec a + 1 upon cosec a - 1 is equal to 2 second prove that

Posted by Girjesh Gupta 1 year, 9 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

What is resistance if 2 resistor of each 24ohm is connected in parallel Please show calculation

Posted by Hooriya Khanam 1 year, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Aneek Bera 1 year, 9 months ago

12 But it is physics.

0Thank You

ANSWER

Cos ^x/1-tanx+sin^x\1-cotx=1+sinx×cosx

Posted by Bhargavi Warghane 1 year, 9 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the quadratic polynomial root 3x square - 8x+4√3

Posted by { Ritu - Priya } { Gurung } 🧑‍🎓 [Humanities ] 1 year, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Sujal Jiratee 1 year, 9 months ago

3Thank You

ANSWER

2+222222+4

Posted by Tanish Dixit 1 year, 9 months ago

CBSE > Class 10 > Mathematics

2 answers

Pratiksha Limbu 1 year, 9 months ago

222228

1Thank You

Apurva Sharma 1 year, 9 months ago

222228

2Thank You

ANSWER

The diameter of a car is 42 cm the number of complete revolution it will make in moving 132 km is

Posted by Ahana Khanna 1 year, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Tanish Dixit 1 year, 9 months ago

3/x

0Thank You

ANSWER

The LCM of two numbers is 14 times their HCF. The sum of LCM and HCF is 600. If one number is 280, then find the other number.

Posted by Joban Preet 1 year, 9 months ago

CBSE > Class 10 > Mathematics

3 answers

Navya Bedi 1 year, 9 months ago

LCM(280,x)=14HCF(280,x)------1 LCM+HCF=600 LCM=600-HCF--------2 From 1 and 2 600-HCF=14HCF 600=15HCF HCF=40 LCM=14×40 LCM=560 Now, LCM×HCF=280×x 560×40=280x x=80 Hope this helps

0Thank You

Ahana Khanna 1 year, 9 months ago

600-280=320 So the other no. Is 320

0Thank You

Joban Preet 1 year, 9 months ago

1Thank You

ANSWER

9x²=324 + x²

Posted by Rohit Kharwar 1 year, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Pratiksha Limbu 1 year, 9 months ago

4.5

0Thank You

ANSWER

If Sin + cos = 2 , find sin^8 + cos^8

Posted by Pratyaksh Jain 1 year, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Aneek Bera 1 year, 9 months ago

Squaring both side we get sin²+cos²+2sincos=4 Sincos=3/2 A.T.C (Sin⁴+cos⁴)²-2sin⁴cos⁴ =[(sin²+cos²)²-2sin²cos²]²-3⁴ =(1-9)²-81 =64-81 =-17

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In the given figure XZ II BC. AZ = 3 cm. BM = 3cm . ZC = 2 cm. and MC = 5cm. Find the length of XY

Posted by Ankita Jetly 1 year, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Ashish Gupta 1 year, 9 months ago

Where is the figure 😂

3Thank You

ANSWER

if sinA+cosA=√3 then Find the value of SinA.CosA

Posted by Ashish Gupta 1 year, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Rupshree Singh 1 year, 9 months ago

By squaring both side SinA.CosA=1

2Thank You

Ishika Chouhan 1 year, 9 months ago

Square both side (SinA cosA)²= (√3)² Sin²A + cos²A + 2sinA.cosA = 3 We know that - Sin²A + Cos²A =1 So, 1+ 2sinA.cosA =3 2sinA.cosA = 3-1 2sinA.cosA =2 SinA.CosA = 2/2 SinA.CosA=1

3Thank You

ANSWER

Two roads are intersecting at right angles.taking road A as X axis road B as y axis and point of intersection o as origin.ramesh and Rajasthan house are located at points p(1,3) and q(4,2) respectively. A)find the distance of Ramesh s house from origin B)find the distance between Ramesh and raj s house

Posted by Harini R 11 months, 1 week ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Two AP have same common difference the first term of the one of these is -1 and the other is -8 find common difference of 4th term .

Posted by Alfiya💫💫💫 . 1 year, 10 months ago

CBSE > Class 10 > Mathematics

5 answers

Rupshree Singh 1 year, 9 months ago

ap4= 7+ 3 d ap4=-1+3d In apz ap4-ap4= ay-a+3d ay-8+3d -1+3d-(-8-3d) -1+34+8-30 = 7

1Thank You

Avani Cho 1 year, 9 months ago

0Thank You

Ashish Gupta 1 year, 10 months ago

0Thank You

Yash Singh 1 year, 10 months ago

7 is correct answer

0Thank You

Yash Singh 1 year, 10 months ago

2 ans

1Thank You

ANSWER

The angle of elevation of a cloud from a point 60 m above a lake is 30 degree and the angle of depression of the reflection of the cloud in the lake is 60 degree find the height of the cloud

Posted by Rajeev Ranjan 1 year, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Rajeev Ranjan 1 year, 10 months ago

120

0Thank You

Ashish Gupta 1 year, 10 months ago

120

1Thank You

Saijyoti Ghose 1 year, 10 months ago

15 cm

1Thank You

ANSWER

Find x if y is 12

Posted by Ak Vijeesh Vijeesh 1 year, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Ak Vijeesh Vijeesh 1 year, 10 months ago

X-y-y =9

0Thank You

ANSWER

A number X is selected from the numbers 1,2,3 and then a second numberY is randomly selected from the numbers 1,4,9. What is the probability that the product xy of the two number will be less than 9?

Posted by Rajeev Ranjan 1 year, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Ashish Gupta 1 year, 10 months ago

5/9

1Thank You

ANSWER

A shopkeeper byus a number of books for Rs 1200. If he had bought 10 more book for same amount each book would have cost him Rs 20 less. Find how many books did he buy

Posted by Akshit Rawat 1 year, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

3x/2-5y/3=-2 , x/3+y/2 =13/6 substitution method

Posted by Dharshidha Dharshi 1 year, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Student Pro 1 year, 10 months ago

3x/2-5y/3=-2----1 x/3+y/2=13/6---2 take the Icm of 6 in 1 and2 therefore, 9x-10y=-12----3 from this x=-12+10y/9---5 and 2x+3y=13-----4 putting 5 in 4 therefore, y=3 and from 5 x=2 {byputting thevalue of y in it}

1Thank You

ANSWER

Etrain travel 360 km at uniform speed if the speed had been 5 km per hour it would have time taken 1 hour less than find the speed of train

Posted by Ram Yadav 1 year, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Pratham Maurya 1 year, 10 months ago

Given distance=360 km. Let the speed of the train be x km/hr. Speed when increased by 5 km/hr =(x+5) km/hr 360x−360(x+5)=1 [360x+1800−360x]x(x+5)=1 x2+5x−1800=0 x2+45x−40x−1800=0 x(x+45)−40(x+45)=0 (x−40)(x+45)=0 x=40,−45 The speed of the train is 40 km/hr.

1Thank You

ANSWER

3sin30` + 4cos²45` - cot²30`/cos²30` + sin²60`

Posted by Ritika Singh 1 year, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Student Pro 1 year, 10 months ago

3sin30=1/2*3=3/2 4cos^2 45=4(1/2)^2=4*1/2=4/2 cot^2 30=√3^2=3 cos^2 30 = √3/2^2=3/4 Sin2 60^= (√3/2)2=3/4 3(1/2)+4/2-3/3/4+3/4 [ by cutting 3 by 3cand 4by 4] 3/2+4/2-3[ now take the lcm of -3 multiply it by 2] = 3+4-6/2=7-6/2= 1/2 ans is 1/2

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