Factorise 2x^2+7x+12 Thank you :)
2 answers:
You might be interested in
Answer:
7776
Step-by-step explanation:
Sphere Volume Formula = 4/3 times times r^2
r is the radius and in this case its 18.
4/3 times times 18^3
4/3 times 5832 times
4 times 1944 times
7776 times
The volume of the sphere is 7776
We will use trigonometric identities to solve this. I will use θ (theta) for the angle.
First of all, we know that cotθ = 1/tanθ. This is a trigonometric identity.
We can replace cotθ in the expression with 1/tanθ.
Simplify: 1/tanθ * tanθ = tanθ/tanθ = 1
So now, we have:
Next, we also know that secθ = 1/cosθ. This is another trigonometric identity.
We can replace secθ with 1/cosθ in our expression.
Simplify:
Our third trigonometric identity that we will use is tanθ = sinθ/cosθ.
We can replace sinθ/cosθ with tanθ.
Now we have as our final answer:
Hope this helps!