For this case we can apply the Pythagorean theorem to find "x". Taking the rectangle triangle of base 5 we have:
By definition of power properties we have:
![\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}](https://tex.z-dn.net/?f=%5Csqrt%20%5Bn%5D%20%7Ba%20%5E%20m%7D%20%3D%20a%20%5E%20%7B%5Cfrac%20%7Bm%7D%20%7Bn%7D%7D)
So:
Answer:
Answer:
Step-by-step explanation:
- cotx cos x - cot x = 0
- cotx( cosx - 1) = 0
1. <u>cotx = 0</u>
- x = π/2 + πn
- In the interval [0, 2π] we have π/2 and 3π/2
2. <u>cosx = 1</u>
- x = 0 + 2πn
- In the given interval we have 0 and 2π
<u>So the solution set is:</u>
It could be PEMDAS.
That means solve by this order:
1). Parenthesis
2). Exponents
3). Multiplication
4). Division
5). Addition
6). Subtraction
To remember the order they say it like
this " Please Excuse My Dear Aunt Sally "
Answer:
d.10cm,5cm,9cm
Step-by-step explanation:
In a triangle, the length of each side must be between the difference and the sum of the lengths of the other sides.
a. 1 + 1 = 2; 2 < 3 Answer: no
b. 2 + 3 = 5; 5 = 5 Answer: no
c. 10 - 3 = 7; 7 > 4 Answer: no
d. 10 + 5 > 9
5 + 9 > 10
10 + 9 > 5
10 - 5 < 9
10 - 9 < 5
9 - 5 <10
Answer: yes
