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1h
reviewed Reject Weird square root disappearing and flipping fraction upside down?
2h
reviewed Reject What is the value as this sequence tends to infinity?
2h
reviewed Approve Explain 'expressing a number using its digits'
7h
reviewed Reject How would you divide a polynomial by another polynomial whose power is greater than its nominator?
10h
reviewed Approve How to simplify $(x+1) / (x^3-x)$
12h
reviewed Approve Find the solution to the following LPP by solving its dual.
13h
reviewed Approve Find $ \lim_{x\to 0^+ } \frac{\alpha(x)}{x}$
15h
revised Calculate $\int\left( \sqrt{\tan x}+\sqrt{\cot x}\right)dx$
You cannot use the identity arctan(a) + arctan(b) when ab>1.....for doing that you must convert them as pi/2-arccot(a) and then as arctan(1/a).......so the result would be as shown....i think it should be tanx-1 not 1-tanx
16h
reviewed Reject Proper way to solve function notations?
16h
reviewed Reject How to find perpendicular vectors in 3D
20h
reviewed Approve remainder of $a^2+3a+4$ divided by 7
23h
reviewed Approve How do I solve a linear system with two variables and three equations?
1d
reviewed Approve The square of n+1-th prime is less than the product of the first n primes.
1d
reviewed Approve Why does the electromagnetic tensor $F$ satisfy $**F = -F$?
1d
reviewed Approve Proving $a=b \bmod 19$ is an equivalence relation
1d
revised What three odd integers have a sum of 30?
Answer should not come in a point format only 3 integers
1d
reviewed Approve If a professor has 7 students and they have to at least do 2 assignments each…
1d
reviewed Approve Calculus: Finding Arc Length--Squaring the Derivative Where did the -1/2 come from?
1d
reviewed Reject Calculus: Finding Arc Length--Squaring the Derivative Where did the -1/2 come from?
1d
reviewed Approve What do you call this thing in probability theory?