Whakaoti i te y=-5(8)^2+50sin(8^2)(8)

$$y = - 5 ( 8 ) ^ { 2 } + 50 \sin ( 8 ^ { 2 } ) ( 8 )$$

Whakaoti mō y

$$y=39.5176185196668$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Evaluate trigonometric functions in the problem

$$y = -5 {(8)} ^ {2} + 50 \cdot 0.898794046299167 {(8)}$$

Tātaihia te 8 mā te pū o 2, kia riro ko 64.

$$y=-5\times 64+50\times 0.898794046299167\times 8$$

Whakareatia te -5 ki te 64, ka -320.

$$y=-320+50\times 0.898794046299167\times 8$$

Whakareatia te 50 ki te 0.898794046299167, ka 44.93970231495835.

$$y=-320+44.93970231495835\times 8$$

Whakareatia te 44.93970231495835 ki te 8, ka 359.5176185196668.

$$y=-320+359.5176185196668$$

Tāpirihia te -320 ki te 359.5176185196668, ka 39.5176185196668.

$$y=39.5176185196668$$

Tautapa y

$$y≔39.5176185196668$$