English, asked by naseeha78, 9 months ago

121.
(1 + tan 95°) (1 + tan 130°) =

Answers

Answered by sprao53413
2

Answer:

95+130=225

Tan225°=Tan(95+130)

Tan(180+45)=(Tan95+Tan130)/(1-Tan95 tan130)

Tan45=(Tan95+Tan130) /(1-Tan95 Tan130)

1 =(Tan95+Tan130) /(1-Tan95Tan130)

1-tan95 tan130=tan95 +tan130

1=tan95+tan130+tan95 tan130

Add 1 both sides

2=1+tan95+tan130+tan95 tan130

2=1(1+tan95)+tan 130((1+tan95)

2=(1+tan95)(1+tan130)

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