WebSep 19, 2024 · #sqrt(2+2cos 2 theta) = sqrt(4 cos^2 theta) = abs(2 cos theta)# So if #cos theta >= 0# then: #sqrt(2+2cos 2 theta) = 2 cos theta# So we have shown that provided all of: #cos 4 theta >= 0# #cos 2 theta >= 0# #cos theta >= 0# then: #sqrt(2+sqrt(2+sqrt(2+2cos 8 theta))) = 2 cos theta# These conditions will be satisfied … WebIt's a Pythagorean identity and comes from \sin^2 x + \cos ^2 x = 1 Just subtract \cos ^2 x from both sides and you have your answer. Now, as to where \sin^2 x + \cos ^2 x = 1 comes from: ...
Solve cos(θ)=-3/2 Microsoft Math Solver
Web1. Find all values of theta in [-4pi,4pi] satisfying cos theta =root 3/2 2. For the function f (theta) = 3cos (pi theta + pi/3), find the amplitude, period, and the phase shift. 3. Graph one period of the function in problem #2. 4. Find a function … WebApr 25, 2016 · #theta = 75^0, 105^0 , 255^0,285^0# where #theta<360# Explanation: we know #cos(180-30)=-sqrt3/2 or cos150=-sqrt3/2 :. 2 theta=150 or theta=75^0# Also #cos(180+30)=-sqrt3/2 or cos210=-sqrt3/2 :. 2 theta=105 or theta=105^0# Similarly #cos(540-30)=-sqrt3/2 or cos510=-sqrt3/2 :. 2 theta=255 or theta=255^0# Also … motoshop pfiffner
Solve cos(θ) Microsoft Math Solver
WebClick here👆to get an answer to your question ️ Find the value of theta , if costheta = √(3)2. ... Find the value of θ, if cos θ = 2 3 ... ⇒ θ = 3 0 ° Hence, the answer is 3 0 °. Was this … WebSep 6, 2024 · 2 cos 3θ = √3 ⇒cos 3θ = √3/2 ⇒ cos 3θ= cos 30° ⇒3θ=30° ⇒θ= 10° ... Math Secondary School answered 2 cos 3 theta = root 3. Find the value of theta See answers Advertisement Advertisement Brainly … WebStep 3 The cosine function is positive in the first and fourth quadrants . To find the second solution , subtract the reference angle from to find the solution in the fourth quadrant . healthy ingredients for weight loss