Q1 of 44 Page 80

The value of tan2 60° is:

tan60° = √3


∴ tan260° = (tan60°)2 = (√3)2 = 3

More from this chapter

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21

If x = 30°, then prove that

cos3x = 4 cos3x – 3cosx

 22

If A = 60° and B = 30° then prove that

2

The value of 2 sin260° cos60° will be:

 3

If then the value of θ is: