Question

Вычислите -3[4]*0.5 -5[2]*3 1.6[0]-3*1.6 2[3]*(-1)[4]

Answer 1

Если так только, как я понял
1)(-3)^4×0,5=81×0,5=81/2
2)(-5)^2×3=25×3=75
3)(1,6^0)-4,8=1-4,8=-3,8
4)2³×(-1)^4=8×1=8

Answer 2

To compute the given expressions, follow the order of operations (PEMDAS/BODMAS):

1. First, calculate any exponents.
2. Then, perform any multiplication or division from left to right.
3. Finally, perform any addition or subtraction from left to right.

Let's go step by step:

1. -3[4]*0.5: Since the expression "[4]" means raising to the power of 4, this means -3 raised to the power of 4, which is (-3)^4 = 81. Now, multiply this result by 0.5: -3[4]*0.5 = 81 * 0.5 = 40.5

2. -5[2]*3: In this expression, "[2]" means raising -5 to the power of 2, which is (-5)^2 = 25. Now, multiply this result by 3: -5[2]*3 = 25 * 3 = 75

3. 1.6[0]-31.6: In this expression, "[0]" means raising 1.6 to the power of 0, which is 1. Now, subtract 3 times 1.6 from 1: 1.6[0]-31.6 = 1 - 3 * 1.6 = 1 - 4.8 = -3.8

4. 2[3](-1)[4]: In this expression, "[3]" means raising 2 to the power of 3, which is 2^3 = 8. Similarly, "[4]" means raising -1 to the power of 4, which is (-1)^4 = 1. Now, multiply these two results: 2[3](-1)[4] = 8 * 1 = 8

So, the final results are: -3[4]0.5 = 40.5 -5[2]3 = 75 1.6[0]-31.6 = -3.8 2[3](-1)[4] = 8