Answer:
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Step-by-step explanation:
Answer:
Step-by-step explanation:
12.3 + 9.6 = 21.9
Answer:
=60 the second option.
Step-by-step explanation:
Given the trigonometric ratio, we can find the value of the angle by simply finding the inverse of the given ratio.
If for example Cos ∅= a, then ∅=Cos⁻¹a
If Cos (x)= 0.5, then x= Cos⁻¹ 0.5
Cos⁻1 0.5=60°
The angle whose sine is 0.5 is ∅=60°
N+10=25-4
n+10=21
n=21-10
n=11
