Question

27 (-3^2 а^3) : (3^5 а^-1) при а= -0,1

Answer 1

$27 times ( - {3}^{2} times {a}^{3} ) div ( {3}^{5} times {a}^{ - 1} ) = 27 times ( - {3}^{2} times {a}^{3} ) : div frac{ {3}^{5} }{a} = \ = - {3}^{3} times {3}^{2} times {a}^{3} times frac{a }{ {3}^{5} } = - {3}^{5} times frac{ {a}^{4} }{ {3}^{5} } = - {a}^{4}$

- а^4 = - ( - 0,1 )^4 = - 0,0001


ОТВЕТ: - 0,0001