Answer:
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Answer:
11
Step-by-step explanation:
6^2 = 6 x 6 = 36
5^2 = 5 x 5 = 25
36 - 25 = 11
The range of a function are the possible outputs, here { 2, 6, 8 }.
Answer: D
The answer is x=3
So c is 3
Answer:
Step-by-step explanation:
hello :
cot x + 2cot x sin x = 0 0≤ x≤ 180
cotx(1+2sinx) =0 means : cotx=0 or 1+2sinx=0
1) cotx=0 so : cosx=0 and sinx ≠ 0 because cotx = cosx/sinx
when : 0≤ x≤ 180 : x=90°
2) 1+2sinx=0 means : sinx = -1/2
when : 0≤ x≤ 180 : no solutions because : sinx ≥ 0
conclusion : one solution : x=90°
