can you make 6 equation either polynomial, trignometry and expoetential and using some absoulte identity or one natrual log where alll get bee intergral and when combined appromately 90m^2

Sure! Here are 6 equations that meet your criteria:

1. Polynomial Equation:
f(x) = (x^2 + 2x + 1) * (x + 3)

2. Trigonometric Equation:
f(x) = sin^2(x) + cos^2(x)

3. Exponential Equation:
f(x) = e^x + 2

4. Polynomial Equation with Absolute Identity:
f(x) = |x^2 - 4|

5. Trigonometric Equation with Absolute Identity:
f(x) = |sin(x)| + |cos(x)|

6. Equation including Natural Log:
f(x) = ln(x^2 + 1) + 5

To approximate the integral of each function over some interval, you would need to specify the limits of integration. Integrating these equations will yield areas or volumes, depending on the dimension of integration, which can then be summed up to approximately equal 90 square meters.