10-2

This week we learned 10-2, we were introduced to tangent formulas. In 10-2 is basically just like 10-1 but 10-2 is not dealing with sine and cosine. 10-2 is dealing with tanganent and cotangent. Same method in 10-1 is used in 10-2.
10-2 formulas are:
Tan (alpha+/-beta) =Tanalpha+/-Tanbeta/1-/+ (tanalpha) (tan beta)
Cot (alpha+beta) =1+ (cotalpha) (cotbeta)/ (cotalpha) + (cotbeta)

Examples:
Tan110degrees-Tan50degrees/1+tan110degreestan50degrees
=Tan(110degrees-50degrees)
=tan 60 which is on the trig chart which your answer will be square root of 3.

Tan(x+pi/4)
Tanx+tanpi/4/1-tanxtanpi/4
=Tanx+1/1-tanx=your answer

Basically 10-2 is not hard. If you know your formulas you will do well and you will master 10-2. 10-2 and 10-1 are the same know formulas and plug it in to solve it. If you mastered the formulas you will breeze right through this section. REMEMBER you can’t use a calculator. If you use a calculator you will get a zero! Just know your formulas and you will do fine.