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What is ( 18^ 144^ + cosec 18^ cosec 144^ ) equal to?

Options

  1. A18^
  2. Bcosec 18^
  3. C- 18^
  4. D- cosec 18^

Correct answer

A. 18^

Step-by-step solution

aligned & 114^ 18^ + 144^ 18^ = (144+18^ ) 18^ 18^ & = (180^ -18^ ) 18^ 18^ & = 1 18^ = 18^ aligned

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