What is 'cotx'?
cot is a short way to write 'cotangent'. This is the reciprocal of the trigonometric function 'tangent' or tan(x).
Therefore, cot(x) can be simplified to 1/tan(x).
Using trigonometric rules, an alternative way to write 1/tan(x) is cos(x)/sin(x).
So cot(x) = 1/tan(x) = cos(x)/sin(x)
LG
Related Maths GCSE answers
All answers ▸Tom tosses a coin. Every toss lands on either heads or tails. The coin lands on heads two thirds of the first 24 games. The coin then lands on heads the next 6 games. For all 30 tosses, work out the ratio heads:tails. Give the answer in the simplest form.
If I have £730 in my bank account which has 2.5% compound interest per year, how much more money will be in there after two years?
A) Multiply out 6(n - 2). B) Factorise psquared - 5p
The time, T seconds, it takes a water heater to boil a constant mass of water is inversely proportional to the power, P watts, of the water heater. When P is 300, T is 20. What is T when P is 400?