Pre-Calculus Formulas

What is the Interest Compound Annually Formula?

• A=P(1+r)^n
• A=Pe^rt
• A=P(1+)

What is Interest Compounded k times per year formula?

• A=P(1+r)k
• A=P(1+r/k)^kt
• A=P(1+r/k)^k

Arc Length Degree Measure 

• S=πrθ/180
• S=rθ*180
• S=r

Tags

CCSS.HSG.C.B.5

Which special triangle is this?

• 30-45-90
• 45-45-90
• 30-60-90

Tags

CCSS.HSG.CO.C.10

Which special triangle is this?

• 45-45-90
• 45-30-90
• 60-30-90

Tags

CCSS.HSG.CO.C.10

What is the formula for a unit vector in the direction of v?

• cosθ=u*v/lullvl
• θ=cos^-1(u*v/lullvl)
• v=<lvlcosθ,lvlsinθ>
• v=v/lvl=1/lvl*v

What is the formulas for angle between vectors? 

• θ=cos^-1u*v/lullvl
• cosθ=u*v/lullvl
• All of the above

What is the formula for direction angle of θ?

• v=<lvlcosθ,lvlsinθ>
• v=v/lvl=1/lvl*v
• θ=cos^-1(u*v/lullvl)
• None of the above

What is the formula of magnitude for component vector form?

• 1/lvl
• lvl=<a,b>
• lvl=√(x_2-x₁)²+(y₂-y₁)²
• lvl=√a²+b²

Tags

CCSS.HSN.VM.A.1

What is the formula to go from ordered pair form to component vector form?

• <x₂-x₁,y₂-y₁>
• <y₂-x₁,y₂-x₂>

Tags

CCSS.HSN.VM.A.2