# Harshal Gajjar

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bio website harshalgajjar.tk location Mumbai, India age 16 member for 9 months seen Dec 17 at 5:52 profile views 164

# 42 Questions

 5 Find the value of a + b + c + d 5 A strange lier that tells truth on 7th day of the week. 4 Find the results of the race using the given 5 conditions. 3 Roots of $2^{\frac x2} + (\sqrt{2} +1)^x = (5+2 \sqrt{2})^{\frac x2}$ 3 Solving this trigonometric equation

# 483 Reputation

 +5 If a,b,c are in AP and $a^2,b^2,c^2$ are in HP, then prove either $a=b=c$ or $a,b,- \frac c2$ are in GP +3 If $ax^2+bx+6=0$ doesn't have $2$ distinct real roots, then find the least value of $(3a+b)$ +10 If $(1-i)^n = 2^n$ , then find $n$. +5 How to find $\sum_{k=1}^n k^k$?

 2 proving $\sum_{k=0}^{n}k\cdot 2^{n-k}=2^{n+1}$ 2 Is area or circumference of a circle irrational? 1 'Obvious' theorems that are actually false 0 Is there any methods to solve for integer solution of a quadratic equation like $ax^2 + bx + c = 0$ 0 Percentage of lawn

# 38 Tags

 2 circle × 2 0 recreational-mathematics × 5 2 area 0 sequences-and-series × 4 2 combinatorics 0 quadratic-equation × 4 0 trigonometry × 7 0 logarithms × 3 0 algebra-precalculus × 7 0 logic × 3

# 10 Accounts

 Mathematics 483 rep 11 Stack Overflow 185 rep 9 Physics 165 rep 8 Chemistry 153 rep 6 Biology 123 rep 5