i need someone to solve the above qeustion...
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1+tanb+tana+tanatanb
1+tan(a+b)+tanatanb
1+tan(π/4)+tanatanb
1+tan45+tanatanb
1+1+tanatanb
2+0
2
hence proved
1+tan(a+b)+tanatanb
1+tan(π/4)+tanatanb
1+tan45+tanatanb
1+1+tanatanb
2+0
2
hence proved
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