Answer:
3
Step-by-step explanation:
h^-2 g
h= 3 and g = 27
(3) ^-2 (27)
1/3^2 (27)
1/9 *27
27/9
3
Answer:
- sin(2x) = -4/5
- cos(2x) = 3/5
- tan(2x) = -4/3
Step-by-step explanation:
It may be easiest to start with tan(2x).
tan(2x) = 2tan(x)/(1 -tan(x)²)
tan(2x) = 2(-1/2)/(1 -(-1/2)²) = -1/(3/4)
tan(2x) = -4/3 . . . . . still a 4th-quadrant angle
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Then cosine can be found from ...
cos(2x) = 1/√(tan(2x)² +1) = 1/√((-4/3)²+1) = √(9/25)
cos(2x) = 3/5
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Sine can be found from these two:
sin(2x) = cos(2x)tan(2x) = (3/5)(-4/3)
sin(2x) = -4/5
It would be 4.4mm/.5 mm x 4 cm = 35.2 cm
It would be 4/12 which is equal to 1/3.
The answer is 1/3
