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Tan30+tan60+tan30.tan60

=1/√3 + √3 + (1/√3)×√3

=1/√3 +√3+1

=(1+3+√3)/√3

=3.309

=1/√3 + √3 + (1/√3)×√3

=1/√3 +√3+1

=(1+3+√3)/√3

=3.309

⇒tan 30+tan 60+tan 30tan60

⇒1/√3+√3+1/√3×√3

⇒1/√3+√3+1

⇒3.309

⇒1/√3+√3+1/√3×√3

⇒1/√3+√3+1

⇒3.309