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We analyzeπ  4$\begin{array}{} \frac{\pi}{4} \end{array} $   -tangentiality of solutions for several types of scalar equations and systems of one-dimensional Minkowski-curvature problems with two points Dirichlet boundary conditions, which is dependent on singularity of weight functions and the growth of nonlinear terms. One of the goals is to show nonπ  4$\begin{array}{} \frac{\pi}{4} \end{array} $   -tangentiality (∥ u ′∥ ∞  &lt; 1) of solutions for some of the above problems. We consider a larger class of weight functions and find out suitable nonlinear terms associated with it to keep nonπ  4$\begin{array}{} \frac{\pi}{4} \end{array} $   -tangentiality of solutions. Finally, we obtain Lyapunov-type inequalities for some nonlinear problems as by-products which also extend the results in some previous studies.

π/4-tangentiality of solutions for one-dimensional Minkowski-curvature problems