Option (A) is correct, the conjugate of denominator will be √10+2
Answer:
our answer will be in quadrant 1 only.
Step-by-step explanation:
From the
cos−1(1) we have the side adjacent to ∠θ=1 and the side hypotenuse=2 . So this is a 30∘−60∘−90∘ triangle and θ=60∘therefore the opposite to ∠θ=√3.
Note that from the restrictions for the range of inverse circular functions cos−1x is restricted to quadrants 1 and 2 and since the argument is positive 12 our answer will be in quadrant 1 only.
SOH CAH TOA
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Sin D = 13 sqrt3/26 = 0.76
Sin E = 13/26 = 0.47
Cos D = 13/26 = 0.87
Cos E = 13 sqrt3/26 = 0.64
Answer:
The Answer is C
Step-by-step explanation:
This applies to your exam.
That’s a simple proportion.
![\frac{32}{20} = \frac{x}{1.2}. \newline 20x = 32 \cdot 1.2. \newline x = 1.92.](https://tex.z-dn.net/?f=%5Cfrac%7B32%7D%7B20%7D%20%3D%20%5Cfrac%7Bx%7D%7B1.2%7D.%20%5Cnewline%2020x%20%3D%2032%20%5Ccdot%201.2.%20%5Cnewline%20x%20%3D%201.92.)
Where
![x](https://tex.z-dn.net/?f=x)
is the unknown height of the person.