Question

What value of tan52 1/2°

Answer 1

We apply two times tan 2x formula

Answer 2

Step-by-step explanation:

letA = 52.1/2°

2A=105°

cos2A=cos105°

cos(60+45)= cos60 cos45- sin60 sin45

1/2.1/√2-√3/2.1/√2

1/2√2-√3/2√2=1-√3/2√2

similarly we have to find the value of sinA

Sin2A= sin105°=√3+1/2√2

now tanA=1-cos2A/sin2A

1-√3/2√2/√3+1/2√2

2√2-1+√3/√3+1

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