解析 x=tcos t, y=tsin t; t=π t=π , t=π , and t=π . When t=π, (x,y)=(-π ,0) and (x,y)=(-π ,0), so an equation of the tangent to the curve at the point corresponding to t=π is y-0=π [x-(-π )], or y=π x+π ^2....
【题目】Find the equation of the tangent to the curvegiven parametrically byx=a(t+cost) y=a(1-sint) atthe pot where atthepOsintuheret=π/(4) t=π/(4) 相关知识点: 试题来源: 解析 【解析】(|x|)/(|d|)=a(1-sint) (v_1)/d=-acost⇒(v_1)/(v_1x)=(-cost)/(1-sint)...
【题目】1.Find the equation of the tangent to the curve y=x^2 ,which is parallel to the r-aris2.Find the equation of the tangent to the curve y=x^2-2x which is perpendicular to the line 2y=-13.Find the equation of the normal to the curvey=3x^2-2x-1 which is parallel to ...
题目 Find the equation of the tangent to the curve at the point (1,1) and the equation of the tangent to the curve at the point . Deduce that for . 答案 y=-号于小,boobah+图恩维r绦丝绿下垂条万2}O2uC$相关推荐 1Find the equation of the tangent to the curve at the point (1,...
Find(dy)/(dx)forthe curve and hencefind the equation ofthe tangent to thecurve at each of the points in (i). 相关知识点: 试题来源: 解析 (dy)/(dx)=4x-9.At(1,-7).tangent is y=-5x- 2;at (4, -4), tangent isy=7x-32. ...
【题目】A curve has equation y=(x-π)sin2x . Show thatthe equation of the tangent to the curve at thepont with xcoordinate is x+y=π. 相关知识点: 试题来源: 解析 【解析】(dy)/(dx)=sin2x+2(x-π)cos2xAt_x=(3π)/4,y=π/(4)and(dy)/(dx)=-1 Simlify y-=-1x--) to ...
please help me about this get Equation of the tangent plane on the surface(x^2-2y^2+2z=4) on p0(x0,y0,z0) and then find a point that tangent plane on the...
aFind the equation of the tangent to the curve 4x2 + 3y2 = 7 at the point (1,1) . 发现正切的等式对曲线4x2 + 3y2 = 7在点 (1,1) 。[translate]
【题目】A curve has the equationx^2-xy+2y^2=144 a Find the equation of the tangent to the curve at the point where the curve intersects the line y=32 in the first quadrant.b I Find the stationary points of the curve. Use graph plotting software to draw the curve and classify the ...
Don't get too close to the house whose roof is under repair.→ Look out! Don't get too close too the house the roof is under repair. 5With ___ left, it doesn’t seem likely that the young girl will be able to reach the airport ahead of schedule.so short timesuch short a ti...