Answer
False
Work Step by Step
By Funibi's Theorem $\int^{b}_{a}\int^{d}_{c}f(x,y)dydx=\int^{d}_{c}\int^{b}_{c}f(x,y)dxdy$
so $\int^{4}_{2}\int^{5}_{1}(3x+4y)dy dx=\int^{5}_{1}\int^{4}_{2}(3x+4y)dxdy$
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