Question

sin 30 cos60 - tan square 45​

Answer 1

Sin30° cos60°-tan45°

1/2 x 1/2-1

1/4-1

By LCM

(1-4)/4

-3/4

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Answer 2

$sin {30}^{.} cos {60}^{.} - {tan {45}^{.} }^{2}$

sin30=1/2 and cos 60=1/2 and tan45=1

putting value

1/2*1/2–(1)2

on solving

1/4-1

1-4/4

-3/4 ans