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  1. The value of cosec²60°+ sec²60° – cot²60° + tan²30° will be
    1. 5
    2. 5
      1
      2
    3. 5
      1
      3
    4. 5
      2
      3
Correct Option: C

cosec²60° + sec²60° – cot²60° + tan²30°

=
2
² + (2)² -
1
² +
1
²
√3√3√3

=
4
 + 4 =
4 + 12
 =
16
 = 5
1
3333


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