Question

plz help me out ..........​

Answer 1

Your answer is Option (D) 0.

$(s - t)(s + t) + (t + p)(t - p) + (p - s)(p + s) \\ = \\ ( {s}^{2} - {t}^{2} ) + ( {t}^{2} - {p}^{2} ) + ({p}^{2} - {s}^{2} ) \\ = {s}^{2} - {t}^{2} + {t}^{2} - {p}^{2} + {p}^{2} - {s}^{2} \\ = 0 \\ \\ \\ \\ Hope \: this \: helps \: you \: ! \\ \\ follow \: me \: ❤$