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Grade: 12
        Prove that tan inverse 1+tan inverse2 +tan inverse3=π
5 months ago

Answers : (1)

amit kumar
12 Points
							If u know that Tan inverse A +Tan inverse B=π+Tan inv(A+B)/1-AB if AB>1 and A,B>0Then simplyTan(inv)2+Tan(inv)3=π+Tan(inv)(2+3)/(1-2.3)=π+Tan(inv)-1=π-Tan(inv)1So tan(inv)1+tan(inv)2+tan(inv)3=π
						
5 months ago
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