sinA - cosA +1 / sinA + cosA -1 = secA + tanA
Now secA = 1/cosA and tanA = sinA/cosA
So sinA - cosA +1 / sinA + cosA -1 = 1/cosA + sinA / cosA
From now on I'll write sinA = s and cosA = c :-
(s - c + 1 )/ (s + c - 1) = 1/c + s/c
(s - c + 1) / (s + c - 1) = (1 + s) / c
Cross multiply:-
s + c - 1 + s^2 + sc - s = sc - c^2 + c
s^2 + c + sc - 1 = sc - c^2 + c
s^2 - 1 + sc - sc + c - c = -c^2
s^2 - 1 = -c^2
-(1 - s^2) = - c^2
Now 1 - s^2 = c^2 so:-
- c^2 = - c^2
So the identity is proved
1) 8w + 12x - 8y
2) 9w + 12x - 8y
3) 8w + 12x - 8y
4) 8w + 12x - 8y
3 of them are equal (1, 3, and 4)
Hope this helps!
First you have to find the area of the rectangle.
A=Lw
A=91(68)
A=6,188 m
Next you have to find the area of the semi- circles.
A of circle= radius to the second power times pi
A=68x68
A= 4,624
Multiply the area of the semi- circles by 2 since there are two of them. That will give you 9,248 m. Add 9,248 with 6,188 and that will give you your final answer which is 15,436 m.
Answer:
32 and 42
Step-by-step explanation:
Hello,
let s note x the smaller number
x + (10+x) = 74
10+2x=74
2x=74-10=64
x=64/2=32
y=32+10=42
thanks
a short sale is when a house is sold for less than what the mortgage is.
answer: B. for less than the mortgage owed on it
