Find the value of ${tan}^{2} 180^{\circ} - 2 {csc 270}^{\circ}$ $tan^2 180^@-2csc270^@$ ?

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Answer 1 · 2017-03-01T09:14:27

${tan}^{2} 180^{\circ} - 2 {csc 270}^{\circ} = 2$ $tan^2 180^@-2csc270^@=2$

As ${tan 180}^{\circ} = 0$ $tan180^@=0$ and ${csc 270}^{\circ} = - 1$ $csc270^@=-1$

${tan}^{2} 180^{\circ} - 2 {csc 270}^{\circ} = 0^{2} - 2 \times (- 1) = 0 + 2 = 2$ $tan^2 180^@-2csc270^@=0^2-2xx(-1)=0+2=2$

Find the value of tan2180∘−2csc270∘tan^2 180^@-2csc270^@?