Challenger App

No.1 PSC Learning App

1M+ Downloads
Which among the following quadratic equation has no real solution?
If m + 1/m = 4 then what is m³ + 1/m³

Find the middle term in the expansion of [3x36]7[3-\frac{x^3}{6}]^7

Find forth term in the expansion of (x-2y)¹²
Find the coefficient of x⁵ in (x+3)⁸
An NGO was formed to help poor patients admitted to a hospital. They collected fund as contribution and decided to distribute the collection equally as a multiple of 1000 to the patients. They also wanted to keep some amount towards their organisational expenses. When they counted the contribution, it was found that if the amount is to be distributed equally (as multiple of thousand ) among 7 patients Rs.5,000 will be left, if distributed equally to 5 people Rs 4,000 will be left and if distributed equally to 2 people, nothing will be left. If they decide to help 5 people , what is the minimum amount each will receive ?
A borrows an amount from B and promises to return the amount with two third of it as interest after 2 years. C borrows Rs.1,000 from B and pays it back after 2 years with 255 interest. If A and C pays the same amount, how much did A borrow ?
If a = 355, b = 356, c = 357, then find the value of a3+b3+c33abc=a^3+b^3+c^3-3abc=

If xy = 16 and x2+y2=32x^2+y^2=32then the value of x+y=?

If a + b =10 and 3/7 of ab = 9,then the value of a3+b3=?a^3+b^3=?

Find the factors of the expression 3x25x83x^2-5x-8

If a + b =5 and ab = 6 finda3+b3a^3+b^3

If a + b =10 and ab = 16 finda3+b3a^3+b^3

If a + b =6 and ab = 8 finda3+b3a^3+b^3

If x2+1/x2=7x ^ 2 + 1 / x ^ 2 = 7 find the value of x+1/xx + 1 / x

If x2+1/x2=34x ^ 2 + 1 / x ^ 2 = 34 find the value of x+1/xx + 1 / x

If x2+1/x2=98x ^ 2 + 1 / x ^ 2 = 98 find the value of x+1/xx + 1 / x

If x2+1/x2=23x ^ 2 + 1 / x ^ 2 =23 find the value of x+1/xx + 1 / x

If x2+1/x2=79x ^ 2 + 1 / x ^ 2 = 79 find the value of x+1/xx + 1 / x

If x2+1/x2=38 x^2+1/x^2=38 findx1/xx-1/x

If x2+1/x2=66 x^2+1/x^2=66 findx1/xx-1/x

Calculate the value of p, if f(p)=P228p+196f(p)= P^2 - 28p+196.

Solve (y24)/3=20(y^2 - 4)/3 = 20.

Solve, (x1)2=[4(x4)]2(x-1)^2 = [4\sqrt{(x-4)}]^2

If a2+b2+c2=14a^2 + b^2 + c^2 = 14 andab+bc+ca=11 ab + bc + ca = 11, find (a+b+c)3=(a + b + c)^3=.

If the sum of the squares of the digits of a two-digit number is 13, then what would be the sum of all the possible combinations of the digits?

a3+b3=218a^3+b^3=218anda+b=2a+b=2then the value of 1ab\sqrt{1-ab}

If x479x2+1=0x^4-79x^2+1=0then the value of x+x1x+x^{-1} can be;

a2+b2=65a^2+b^2=65, and ab=8ab=8 then find the value of a2b2a^2-b^2

If (a+1/a3)2=36(a+1/a-3)^2=36then find a2+1/a2a^2+1/a^2

If (a+1/a3)2=25(a+1/a-3)^2=25then find a2+1/a2a^2+1/a^2

If (a+1/a3)2=81(a+1/a-3)^2=81then find a2+1/a2a^2+1/a^2

If (a+1/a3)2=16(a+1/a-3)^2=16 then find a3+1/a3a^3+1/a^3

What is the value of (x + 1)(3x – 4)?

If 4x - 3y = 12 and xy = 5 , then find the value of16x2+9y28\frac{16x^2+9y^2}{8}

If (a+1/a3)2=49(a+1/a-3)^2=49then find a2+1/a2a^2+1/a^2

If (a+1/a3)2=16(a+1/a-3)^2=16 then find a2+1/a2a^2+1/a^2

Find the degree of the polynomial : (x² + 2)²
Find the degree of the following equation: X² - 5X + 6 = (X - 3)(x - 2)
280 ഓറഞ്ചുകൾ ആൺകുട്ടികളും പെൺകുട്ടികളും അടങ്ങുന്ന 50 പേർക്ക് വിതരണം ചെയ്തപ്പോൾ ആൺകുട്ടികൾക്ക് 5 ഓറഞ്ചും പെൺകുട്ടികൾക്ക് 7 ഓറഞ്ചും വീതം ലഭിച്ചു പെൺകുട്ടികളുടെ എണ്ണം എത്ര ?

x1x=3x-\frac1{x}=3;x≠0 ആയാൽ x4+1x4=?x^4+\frac1{x^4}=?

ഒരു വാട്ടർ ബോട്ടിലിനു 15 രൂപ വിലയുണ്ട്. അതിൽ കുപ്പിയുടെയും വെള്ളത്തിന്റെയും വില ഉൾപ്പെടുന്നു. വെള്ളത്തിന് കുപ്പിയേക്കാൾ 12 രൂപ കൂടുതൽ ആണെങ്കിൽ കുപ്പിയുടെ വില എന്താണ്?
image.png
A statement is given, followed by four conclusions given in the options. Find out which conclusion is true based on the given statement. Statement: H=W>F≥S≥T>Y

If the sum of the roots of the quadratic equation $5x^2+bx+4=0 is 9, the find the value of b.

The Sum of the roots of the quadratic equation 4x2+7x21=04x^2+7x-21=0 is:

If θ\theta is an acute angle, find the denominator A, when (cosecθcotθ)2=1cotθA(cosec\theta-cot\theta)^2=\frac{1-cot\theta}{A}

image.png
An aeroplane is moving at a constant altitude 'h'. At 10:00 AM, it is seen at an elevation of 30°. 1 minute later, it is observed at an elevation of 60°. If the speed of the plane is 960 km/h, then find 'h'.

If x + y = 11, then (1)x+(1)y(-1)^x + (-1)^y is equal to _____

(where x, y are whole numbers).