Answer:
<h3><em>
π/4 and 3π/4</em></h3>
Step-by-step explanation:
Given the equation 
, we are to find all the values of x in the interval [0, 2π] that satisfies the equation.
Simplifying the equation:
Square both sides of the equation;
The general formula for sin(x) is x = nπ + (-1)ⁿ∝ where n = 0, 1, 2, 3...
Since ∝ = 45° = π/4.
x = nπ + (-1)ⁿπ/4
when n = 1
x = π + (-1)¹π/4
x = π - π/4
x = 3π/4
<em>Hence the values of x within the given interval are π/4 and 3π/4</em>
Answer:
19 and 21
Step-by-step explanation:
9 10
33 55
times
then equals 21
9+10=19
Answer:
B. 62.5 m
Step-by-step explanation:
∠EDF and ∠ADC are vertical angles, and therefore equal.
EF and AC are parallel, so ∠DEF and ∠DAC are alternate interior angles, as well as ∠DFE and ∠DCA. Therefore, each pair is equal.
From this, we can say ΔDEF and ΔDAC are similar triangles. So we can write a proportion:
10 / 20 = DB / 125
DB = 62.5
Answer: I think it’s 0.25
Step-by-step explanation:
Answer:
RT
Step-by-step explanation:
