The definition of log is logba = x so that: a = bx--------(i) we now need to find out x in log3(1) = x By definition, we see that zero is the... View Article
If the thousands digit is even, the number formed by the last three digits must be divisible by 16. Example:254,176: 176. If the thousands digit... View Article
A prime number is a positive integer having exactly two factors. If p is a prime, then it’s only factors are necessarily 1 and p itself.... View Article
A quadratic is a polynomial that is written like ax2 + bx + c, where a, b, and c are just numbers. For an easy case of factoring, you can... View Article
We know the identity tan(A-B) = [(tan A – tan B)/(1 + tan A tan B)] Now we will substitute A = π and B = x in the above identity we get... View Article
The Moon's orbit around Earth is elliptical. The point of the orbit closest to Earth is called perigee, while the point farthest from Earth is... View Article
d/dx tan 2x = 2 sec2 (2x) We know that the derivative of tan x is sec2 x d/dx (tan x) = sec2 x According to the chain rule, d/dx tan 2x =... View Article
Tangent 90 degrees is evaluated as undefined because tan of an angle is equal to the ratio of sin and cos of the same angle. Since, sin 90 = 1... View Article
To derive the formula for circumference let us start with definition of pi The value of Pi (π) is the ratio of the circumference of a circle... View Article
