Question

preciso do calculo:

$1) \: cotg {}^{2} (30) + sec60 - cossec90$
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Answer 1

Resposta:

Explicação passo-a-passo:

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

$\frac{\frac{3}{4} }{\frac{1}{4}}$ + 1 =

$\frac{3}{4}$.$\frac{4}{1}$ + 1 =

$\frac{12}{4}$ + 1 = 4

Answer 2

$\\\\\sf cot \left(g^2\right)\left(30\right)+sec \left(60^ \:}\right)- \sf cos \left(sec \left(90 \:}\right)\right)\\\\\\sec(90)\ sem \ solucao\\\\\\\to\boxed{\sf sem \ solucao}$