The trick here is to not use sin and cos at all.
The -13/15 is the x coordinate of a line from the origin to the unit circle (the line with angle theta). That happens to be the cos(theta).
The y coordinate is the sin(theta).
You can draw this as a triangle where x^2 + y^2 = 1.
So y = √(1 - (13/15)^2) ≈ 0.49889. But your exact answer should be:
-3, -1, 0, 5, 7 ......... hope this helps
Answer:
Step-by-step explanation:
Let the coordinate of the points W, V and R are and respectively.
The coordinate of the section point, which divides the line joining the two points and in the ration is
and
.
The given ration is,
.
The exact point can be determined by putting the value of the exact coordinate in the above-obtained formula.
Answer:
72
Step-by-step explanation:
180-108
Answer:
Rs. 2970 is the interest
Step-by-step explanation:
30 months is same as 30/12 = 2.5 months
I = PRT/100
P is 18000
R is 6.6%
T is 2.5 years
Substitute all these
I = (18,000 * 2.5 * 6.6)/100
= 2970