please answer? please solution? (chapter- compound Angles)
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please answer? please solution? (chapter- compound Angles)
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Answer:
1) the correct answer is 1 second option
2) the correct answer is -√3 second option
Step-by-step explanation:
5.
we know that tan(α+β)=tan(α) + tan(β)/1 - tan(α)+tan(β)
Putting α=100 β=125
tan(100+125 )= tan(100) + tan(125) = tan(225)
[tan(100) + tan(125)]/1- tan(100)×tan(125)
=>1
⇒1−tan100 × tan125 = tan100 + tan125
⇒tan100 × tan125 + tan100 + tan125 = 1
Therefore, Answer is 1