Question

please answer (chapter- compound Angles)​

Answer 1

Step-by-step explanation:

Step-by-step explanation:

wkt

tan(A+B)=(tanA + tanB)/(1-tanAtanB)

tan 100 +tan124 +tan100tan125=

tan(100+125)=(tan100+tan125)/(1-tan100tan125)

tan225(1-tan100tan125)=tan100+tan125

tan(180+x)=tanx

tan225=tan(180+45)=tan45=1

1-tan100tan125=tan100+tan125

tan100+tan125+tan100tan125=1

5)opt 2

similarly

tan22 +tan38-√3=ktan22tan38

tan(22+38)=tan22 +tan38/(1-tan22tan38)

tan60(1-tan22tan38)=tan22+tan38

tan 60=√3(

√3(1-tan22tan38)=tan22 +tan38

√3-√3tan22tan38=tan22+tan38

tan22+tan38-√3=-√3tan22tan38

equate to question

here k is -√3

6) opt 2