Y=(1+tanA)(1-tanB) then A-B=π÷4 so (y+1)™(y+1)is Ka answer btayo
Amarchand Choudhary Ak , 8 Years ago
Grade 12th pass
Trigonometry> Y=(1+tanA)(1-tanB) then A-B=π÷4 so (y+1)™...
1 Answers
NIKUNJ DANKHARA
Y=(1+tan((π/4)-B)(1+tanB)
Y=1+((1-tanB)÷(1+tanB))(1+tanB)
Y=[((1+tanB)+(1-tanB))÷(1+tanB)][1+tanB]
By equating this equation
Y=2
So (2+1)™(2+1)
Ans=27
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