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KCET2013MathematicsTrigonometric Ratios & Identities

( 1^ ) ( 2^ ) ( 3^ ) ( 179^ )

Options

  1. Ais positive
  2. Bis negative
  3. Clies between 1 and 180
  4. Dis zero

Correct answer

D. is zero

Step-by-step solution

( 1^ ) ( 2^ ) ( 3^ ) ( 179^ )= 1^ 2^ 90^ 179^ = 1^ 2^ (1) 179^ .= 1^ 2 0 90^ =1 )=0 ( 179^ 1=0 )

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