设〈((PM),(PN))〉=2θ,(PM)⋅(PN)=|(PM)(|^2)cos2θ=((|(PO)(|^2)-1))((1-2si(n^2)θ))=((|(PO)(|^2)-1))((1-21/((|(PO)(|^2))))),∴(PM)⋅(PN)=|(PO)(|^2)+21/((|(PO)(|^2)))-3≥2√2-3,当且仅当|{\overrightarrow{PO}}|=\root
The significant increase of the root-mean-square fluctuation (RMSF) in the EF1 loofcCaDlEflFehxidb2ilEiFt1yiosfctohnesaisctteinntbwinitdhintghesictersysotfaEllFohgrda2pihnicthBe-afabcsteonrcaenodf CSP analysis, which support an Ca2+ (Fig. 3d). Interestingly, the increase in C-terminal ...
5 (i) Show that the equation sin x-x+1 =0 has a root between 1.5 and 2.[2] (ii) Use the iteration x_(n+1)=1+sinx_n , with a suitable starting value, to find that root correct to2 decimal places.[3] (iii) Sketch the graphs of y = sinx and y = x- 1, on the ...
(c) sin^{-1} (- {square root 2} / 2). (d) tan^{-1} (-{square root 3} / 3). Solve. sin( 2 sin^{-1} (3/5) ) Why do arccos and arcsin have very different antiderivatives? \int x \arcsin x dx| If y = arcsin x, then tan y= (a)\ \frac{\sqrt{1-x^{2}{x}...
Calculate the root mean square of the function i = cos x - sin x over the interval -pi/2, 0. Find the exact values for each inverse trigonometric function: a) \sin^{ 1}\left( \frac{1}{2}\right) . b) \tan^{ 1} \left( \sqrt{3}\right) . c) ...
计算: (1) \sqrt3\tan12\degree-3\over \sin 12\degree(4\cos^212\degree-2) (2)\frac{\cos 40\degree+\sin 50\degree(1+\root \of {3}\tan10\degree )}{\sin 70\degree\root \of {1+\cos 40\degree } } 相关知识点: 试题来源: 解析 解:(1)原式 $$ = \frac { \sqrt { 3 ...
Find the exact value of arcsin (sin 2pi/3). Find the exact value of the following expression: cos (sin^{-1} {square root 2} / {2}). Find the exact value of the following expression. sin (2 sin^{-1} (7 / {25})) Find the exact value of the following. ...
∴ (sinα +2cosα )/(2sinα -cosα ) $ =\frac{tan\alpha +2}{2tan\alpha -1}=-\frac{1}{3} $. (2)∵ a =(2 2sinα ,1 ) , b =(1/2, 2 cosα ) , $ \overrightarrow{a} -2\overrightarrow{b} $$ =(2\root \of {2}sin\alpha -1,1-2\root \of {2} cos...
EDA2R was strongly expressed in outer root sheath (ORS) cells and weakly expressed in dermal papilla (DP) cells. EDA-A2 induced the apoptosis of both ORS cells and DP cells via the activation of cleaved caspase-3. In addition, EDA2R was highly expressed in the late anagen phase compared...
Solve the equation for exact solution(s) over the interval (0, 2 pi). cos theta = 0 Solve the equation on the interval 0 less than or equal to theta less than 2 pi. square root 2 sin^2 theta - sin theta = 0 Find all solutions of the equation in the interval (...