Question

evaluate sin square 30 - tan square 60 + cosec square 60 + 6 second square 45 / cosecant 90 + Cos 60 minus 10 square 45​

Answer 1

1/4-3+4/3+12+1/2-1=121/12

Step-by-step explanation:

Answer 2

$sin30^\circ-tan 60^\circ+cosec^260^\circ+\frac{sec^245^\circ}{cosec90^\circ} +cos60^\circ-tan^245^\circ$ $=\frac{10-3\sqrt{3} }{3}$

Step-by-step explanation:

$sin30^\circ-tan 60^\circ+cosec^260^\circ+\frac{sec^245^\circ}{cosec90^\circ} +cos60^\circ-tan^245^\circ$

$=\frac{1}{2} -\sqrt{3} +(\frac{2}{\sqrt{3} } )^2+\frac{(\sqrt{2} )^2}{1} +\frac{1}{2}-1^2$

$=1-\sqrt{3} +\frac{4}{3} +2-1$

$=\frac{10-3\sqrt{3} }{3}$