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ctions. Always simplify thoroughly and check for extraneous solutions. Can substitution help in verifying trigonometric identities? Yes, substituting known identities or special angle values can simplify the expression and help confir

a of large square} = \text{Area of two smaller squares} + \text{Area of four triangles} \] and then measure and compare the combined areas to verify the theorem. Methodology: How to Verify Pythagoras Theor