Question

evaluate 2( cos 2 45+tan2 60)-6 tan 30.if tan(a+b)= root3​

Answer 1

Answer:

Step-by-step explanation:

2(cos²45+tan²60)-6 tan 30 if tan(a+b)=√3,

2[(1/√2)²+(√3)²]-6*1/√3,

2(1/2+3)-6/√3,

2(7/2)-6/√3,

7-6/√3,

1/√3 is the answer.

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