展开 5.8sin(pi/6 (x-2))+9.2

解答

展开

5.8 sin (\frac{π}{6} (x - 2)) + 9.2

2.9 sin (0.52359 \dots x) - 5.02294 \dots cos (0.52359 \dots x) + 9.2

求解步骤

5.8 sin (\frac{π}{6} (x - 2)) + 9.2

5.8 sin (\frac{π}{6} (x - 2)) = 5.8 (0.5 sin (0.52359 \dots x) - 0.86602 \dots cos (0.52359 \dots x))

= 5.8 (0.5 sin (0.52359 \dots x) - 0.86602 \dots cos (0.52359 \dots x)) + 9.2

乘开

5.8 (0.5 sin (0.52359 \dots x) - 0.86602 \dots cos (0.52359 \dots x)) : 2.9 sin (0.52359 \dots x) - 5.02294 \dots cos (0.52359 \dots x)

= 2.9 sin (0.52359 \dots x) - 5.02294 \dots cos (0.52359 \dots x) + 9.2

e x p an d \frac{( x + 4 ) ( x - 1 )}{x - 4}

e x p an d \frac{6 ( 1 + 2 ^{n} )}{2 + 2 ^{n}}

e x p an d \frac{n ( 2 a + d ( n - 1 ) )}{2}

e x p an d (x + x^{2} + 2 e^{2 x})^{2}

e x p an d \frac{- y ( k - 2 ) - 11}{6}