735° = 15° ---> tan 735° =tan 15° Hence, tan 735° is equal to tan 15°. Problem 2 : Evaluate : cos (-870°) Solution : Since the given angle (-870°) has negative sign, we have to assume it falls in the fourth quadrant. In the fourth quadrant, "cos" is positive. S...
对于这种0⋅∞型的问题，要用到洛必达法则(L'Hopital's rule)。S=limx→1(1−x)tanπx2...
cos(theta) 45 2 cos(theta) 30 3 tan(theta) 60 4 tan(theta) 30 不知道嗎? 本學習集中的詞語(9) sin(theta) 30 1/2 sin(theta) 45 sqrt2/2 sin(theta) 60 sqrt3/2 cos(theta) 30 sqrt3/2 cos(theta) 45 sqrt2/2 cos(theta) 60 1/2 tan(theta) 30 sqrt3/3 tan(theta) 45 1 ...
sin的消失可以在洛必达法则的计算过程中体现出来。洛必达法则（L'Hôpital's Rule）是解决极限问题的...
tan 0 1/√3 1 √3 Undefined Sine (sin) function gives the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle. Cosine (cos) function gives the ratio of the length of the adjacent side to the length of the hypotenuse. Tangent (tan) function ...
lim (tan(x) - x) / (sin(x) * sin(x) * sin(x)) = lim (sec^2(x) - 1) / (3 * sin^2(x) * cos(x))由于分子和分母都是无穷小的时候可以进行计算，因此可以继续使用 L'Hôpital's Rule 计算极限。得到极限结果 计算后得到，极限为 1/3。因此，lim (...
sin(x)=cos(x) 求解x 的值 x=πn1+4π n1∈Z 图表 共享 复制 已复制到剪贴板
tan 2y = 2 tan y/{1-tan^(2) y}. What is sin 2x double angle? The double angle formula is used to calculate sin 2x, cos 2x, tan 2x, for any given angle 'x'. The sine double angle formula for an angle 'x' is sin 2x = 2sin(x)cos(x).What...
Evaluate: ∫cosx sinx dx Integration by U - Substitution: If the given integral is complicated to integrate directly, then we use the substitution method. If the integral is in the form or could be made in this form ∫f(g(x))⋅g′(x) dx, then substitution method is us...
Evaluate the limit using L'Hopital's Rule. Limit as x approaches 0 of (sin^2 x)/(e^x - x - 1). Let f(x) = 1 - tan(x)/ sin(x) - cos(x). Evaluate lim x rightarrow x/4 f(x) Find the limit: limit as x approaches pi of sin(x + sin x).Explore...