$$\sin ^ { - 1 } ( \frac { 4 } { 5 } ) + 2 \tan ^ { - 1 } ( \frac { 1 } { 3 } ) = \frac { \pi } { 2 }$$
$\text{false}$
$$0.013962180339145272 ^ {-1} + 2 \cdot 0.005817829810955344 ^ {-1} = \frac{\pi}{2}$$
$$2\times 0.013962180339145272^{-1}+4\times 0.005817829810955344^{-1}=\pi $$
$$2\times \frac{125000000000000000}{1745272542393159}+4\times 0.005817829810955344^{-1}=\pi $$
$$\frac{250000000000000000}{1745272542393159}+4\times 0.005817829810955344^{-1}=\pi $$
$$\frac{250000000000000000}{1745272542393159}+4\times \frac{62500000000000000}{363614363184709}=\pi $$
$$\frac{250000000000000000}{1745272542393159}+\frac{250000000000000000}{363614363184709}=\pi $$
$$\frac{40555517414959000000000000000000}{48815858775849734721201154287}=\pi $$
$$\text{false}$$
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