Question

Sin^2 30-tan^2 60+cosec^2 60+6 sec^2 45÷cosec 90+cos 60-tan^2 45

Answer 1

Answer:

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Step-by-step explanation:

= ((1/2)^2-(√3)^2+(2/

√3)^2+6(√2)^2)

_______________

(1+1/2)-(1)^2

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

_______________

2+1/2-1

= -11/4+4/3+12

______________

1/2

= -33+16/12+12

________________

1/2

= -17+144/12

______________

1/2

=254/12

=127/6

=21.16

Hope it's helpful for you .

Answer 2

Answer:

$- \frac{5}{3 \sqrt{3} } \\ \\ \frac{ \sqrt{3} }{2} - \sqrt{3} + \frac{2}{ \sqrt{3} } + 6(0) \\ \div 1 + \frac{1}{2} - 0 = - \frac{5}{3 \sqrt{3} }$