Area of an equilateral triangle is
, where s is length of a side; we have s = 2 + 4 + 2 = 8 mm; then area is
;
Area of a semi-circle = (1/2)π
, where r is the radius of circle; r = 4/2 = 2 mm; then area is 2π;
The shaded area is
- π );
Answer:
−1/cotθ
1/cot(−θ)
tan(−θ)
Step-by-step explanation:
The tangent function is a the ratio for an angle defined as opposite / adjacent. A negative applied to −tan θ will give the opposite value. This is also true for the function when taken on a negative angle. tan(−θ) = −tan θ. This identity is also true for sin, sec, and cot. Recall that cotangent is the reciprocal of tangent and is defined as the ratio adjacent / opposite. Taking the reciprocal of cotangent will be the same as tangent. Using this information the following are equivalent:
1/cotθ
−1/cotθ ----> The reciprocal of Cot is Tan
1/cot(−θ)
----> The reciprocal of Cot is Tan and cot(−θ) = −cot θ.
−1/cot(−θ)
tan θ
tan(−θ)----> tan(−θ) = −tan θ
One example on the top of my head is moors law. It can be graphed as an exponential equation and it models a real world situation
Answer:
Sope = mx+b
Step-by-step explanation:
Slope=-5/4x