Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §2.4 The Derivative of the Sine and Cosine, #10 · Calculus · Differentiation rules

Find the limits as …: (a) … (b) … (c) … (d)…

Find the limits as $h \to 0$ :
(a) $\frac{1 - c o s h}{h ^{2}}$ (b) $\frac{1 - c o s ^{2} h}{h ^{2}}$
(c) $\frac{1 - c o s ^{2} h}{s i n ^{2} h}$ (d) $\frac{1 - c o s 2 h}{h}$

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §2.4 The Derivative of the Sine and Cosine, #10

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