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Nov 17, 2016 · Explanation: #cos x cot x + sinx = cscx. Left Side : = cosxcotx + sinx. = cosx cosx sinx +sinx. = cos2x sinx + sinx. = cos2x +sin2x sinx. = 1 sinx.
May 26, 2018 · How do you prove #sin (2x) = 2sin(x)cos(x)# using other trigonometric identities?
Nov 30, 2015 · 12 The exterior angles of a dodecagon are 30^@, so they sum to 12xx30^@ = 360^@ The interior angles are 150^@ = 180^@ - 30^@ = 5 xx 30^@
Mar 11, 2018 · cos^-1(1/5) ~~ 78^circ If the angle of projection is alpha and the projection speed is u, the projectile starts off with the horizontal and vertical velocity components u cos alpha and u sin alpha, respectively. Of these, the horizontal component of the velocity is constant throughout the motion, while the vertical component keeps on changing at a constant rate -g. At the topmost point of the ...
Dec 11, 2022 · Best Answer. All is in the KJV Bible 11056 times. Wiki User. ∙ 12y ago. Resources. Leaderboard All Tags Unanswered. Top Categories. Algebra Chemistry Biology World History English Language Arts ...
Apr 30, 2016 · Explanation: To integrate x to a power times e to a power, we expect to differentiate the x and integrate the e to a power. ∫x2ex2dx. In order to integrate ex2dx we need an x so that we can use substitution. ∫x2ex2dx = ∫xex2 xdx . Let u = x and dv = ex2 xdx. The du = 1dx and v = 1 2ex2. ∫x2ex2dx = 1 2 xex2 − 1 2∫ex2dx. Now we need ...
Apr 27, 2014 · You divide the change in concentration by the time interval. > Consider a reaction "aA + bB → cC + dD" You measure the rate by determining the concentration of a component at various times. The rate of reaction of "A" is "-"(Δ"[A]")/(Δt) We insert a minus sign to make the rate a positive number. We do not need the minus sign if we are working with a product. For example, the rate of ...
Apr 27, 2015 · E h = n ⋅ ν → the term n ⋅ ν should have units of photons/second. According to the equation E = n * h * nu (energy = number of photons times Planck's constant times the frequency), if you divide the energy by Planck's constant, you should get photons per second. E/h = n * nu -> the term n * nu should have units of photons/second.
Jul 17, 2015 · Answer link. v=omegaR Linear velocity v is equal to the angular speed omega times the radius from the center of motion R. We can derive this relationship from the arclength equation S=thetaR where theta is measured in radians. Start with S=thetaR Take a derivative with respect to time on both sides d S/"dt"=d theta/"dt"R d S/"dt" is linear ...
Apr 16, 2015 · 1 Answer. Left Hand Side : sinx + cosxcotx. We know that cotx = cosx sinx. Therefore sinx + cosxcotx = sinx +cosx ⋅ (cosx sinx) = sinx + cos2x sinx. = sin2x +cos2x sinx. = 1 sinx. = cscx (Because Cosecant is the reciprocal of Sine)
