sin(30)*1.8

asked by guest
on Dec 27, 2024 at 3:47 am



You asked:

Evaluate the expression: sin⁡(30)⋅1.8\sin\left( 30 \right) \cdot 1.8

MathBot Answer:

sin⁡(30)⋅1.8=9sin⁡(30)5≈−1.77845692336715122197794803313002\sin\left( 30 \right) \cdot 1.8 = \frac{9 \sin{\left(30 \right)}}{5} \approx -1.77845692336715122197794803313002

sin⁡(30)⋅1.8=sin⁡(30)⋅(1+810)=sin⁡(30)⋅(1+45)=sin⁡(30)⋅95=95⋅sin⁡(30)\begin{aligned}\sin\left( 30 \right) \cdot 1.8&=\sin{\left(30 \right)} \cdot \left(1 + \frac{8}{10}\right)\\&=\sin{\left(30 \right)} \cdot \left(1 + \frac{4}{5}\right)\\&=\sin{\left(30 \right)} \cdot \frac{9}{5}\\&=\frac{9}{5} \cdot \sin{\left(30 \right)}\end{aligned}

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