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Shashwat Singh 5 years, 1 month ago

Tangent OQ is equal to 25 CM Now distance between the point and the radius is 24 cm O is the radius of circle In triangle POQ Pythagoras theorem, (OP)^2 =OQ^2 +PQ^2 (25)^2 = OQ^2 + (24)^2 625-576 = OQ^2 OQ^2 =49 OQ= 7 CM Hence, radius is 7cm

ANSWER

12n cannot end with digit 0 or 5 for any natural number

Posted by Rohan Ukey 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Write 0.0265265265265.... in p/q form

Posted by Khushi Ranka 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If n-1 is the root of the equation X2+6x+7 find bothe the roots

Posted by Aaditya Singh 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Shashwat Singh 5 years, 1 month ago

In place of n-1 it would be x-1 p(x)= x^2 +6x +7 x-1 =0 x=1 p(1)= 1^2 + 6×1 + 7 = 2+6+7 =15 Hence both roots are 15 and 1

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1+4+7+10+....+x=287 find x

Posted by Saurya Shah 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Shashwat Singh 5 years, 1 month ago

a=1. d=3. Sn= 287. an=? Sn= n/2[2a+(n-1)d] 287=n/2[2×1 +(n-1)3] 287= n/2[2+3(n-1)] 287= n/2[2+3n-3] 287= n/2[3n-1] 287×2 =n(3n-1) 574= 3n^2 - n 3n^2 - n - 574 =0 Now,I hope you would solve.

Prabhnoor Kaur 5 years, 1 month ago

We need to find n Here,a=1 d=3 a n=287 n=? Therefore, An = a+(n-1)d 287= 1+(n-1)3 286=3n-3 289=3n 279/3=n 93=n ANSWER

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Find the HCF and LCM of 92 and 510 by the method of prime factorisation.Hence , verify that 'HCF×LCM= Product of two given number'.

Posted by Jeet Patel 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Khushi Ranka 5 years, 1 month ago

92=2×2×23 510=2×3×5×17 HCF=2 LCM=2×2×23×3×5×17=23460 HCF×LCM=Product of two given number 2×23460=92×510 46920=46920

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(sin 30°+cos30°)-(sin60°+cos60°)

Posted by Sachin Prajapati 5 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Ujjawal Mittal 5 years, 1 month ago

Khushi Ranka 5 years, 1 month ago

=(1/2+root3/2)-(root3/2-1/2) =1/2+root3/2-root3/2-1/2 =0

Adarsh Chaudhary 5 years, 1 month ago

Good Day 5 years, 1 month ago

= Sin30°+ Cos30° - { Cos(90°-60)+Sin(90°-60°)} = Sin30° + Cos 30° - Cos30° - Sin30° = 0

ANSWER

If any by the following points and give reason for your answer 1) (-1,-2) ,(1,0),(-1,2),(-3,0)

Posted by Diksha Chandrawanshi 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

In a rain water harvesting system the rain water from a roof 22m×20m drains into a cylindrical tank having diameter of base 2m and height 3.5m.if the tank is full,find the rainfall in cm.

Posted by Anurag Yadav 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Proof all triangle theorems

Posted by Irfan Khan 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

.Find the zeros of the polynomial and verify them with coefficient of quadratic polynomial ax² + bx +c

Posted by Bobby Dubey 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

★ ? ♪ 5 years, 1 month ago

Pagal

ANSWER

4x*2-6-8x

Posted by Vivek Kumar 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Preeti 5 years, 1 month ago

X= (2+√10)/2 or x=(2-√10)/2

Aryan Patel 5 years, 1 month ago

-6

ANSWER

-3y-4y=

Posted by Tanmay Tarun Behera 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

?? ?? 5 years, 1 month ago

-7y

Rajeev Sharma 5 years, 1 month ago

-7y

Anjali Sharma 5 years, 1 month ago

-7y

ANSWER

Yeh mathematics kisne banayi thii???? Mujhe mil jaye vo kahii ??

Posted by Anam Malik 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Rebekah Augustine 5 years, 1 month ago

???

Ranvijay Kumar 5 years, 1 month ago

???

Anam Malik 5 years, 1 month ago

???

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Find the root root of quadratic equation X square - 4 x + 2 is equal to zero using quadratic formula

Posted by Yasmeen Ansari 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

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Find hcf and lcm for 377,435&667

Posted by A.M.Thiru Vengatesh 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

✓5 is irrational

Posted by Manikandan M 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

, 🙂 5 years, 1 month ago

Let us assume that √5 is a rational number. Sp it t can be expressed in the form p/q where p,q are co-prime integers and q≠0 ⇒√5=p/q On squaring both the sides we get, ⇒5=p²/q² ⇒5q²=p² —————–(i) p²/5= q² So 5 divides p p is a multiple of 5 ⇒p=5m ⇒p²=25m² ————-(ii) From equations (i) and (ii), we get, 5q²=25m² ⇒q²=5m² ⇒q² is a multiple of 5 ⇒q is a multiple of 5 Hence, p,q have a common factor 5. This contradicts our assumption that they are co-primes. Therefore, p/q is not a rational number √5 is an irrational number

Manikandan M 5 years, 1 month ago

✓5=a/b

Manikandan M 5 years, 1 month ago

✓5=a/b

ANSWER

What is the area of the triangle

Posted by Abhishek Meena 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Ujjawal Mittal 5 years, 1 month ago

1/2 x base x height

Julia Biji John 5 years, 1 month ago

Area of the triangle =1/2 ×base×height Area of equilateral triangle =√3/4 a^2

Taniya 5 years, 1 month ago

Area of the triangle =1/2 ×base×height Area of equilateral triangle =√3/4 a^2 Heron's formula = √s(s-a)(s-b)(s-c)

ANSWER

Define to Pythagoras theorem

Posted by Piyush Parashari 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Bobby Dubey 5 years, 1 month ago

a theorem attributed to Pythagoras that the square on the hypotenuse of a right-angled triangle is equal in area to the sum of the squares on the other two sides.