please answer (chapter- compound Angles)
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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
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