Bạn đang xem: Tìm giá trị nhỏ nhất của hàm số y = 2sin^2 x + 2sinx
displaystylex=leftlbraceleft(4k+1 ight)fracpi2,kinmathbbZ ight bracecupleftlbracekpi-left(-1 ight)^kfracpi6,kinmathbbZ ight brace ...
How do you solve displaystyle2sin^2x+3sinx+1=0 và find all solutions in the interval displaystyleleft<0,2pi ight) ?
https://socratic.org/questions/how-do-you-solve-2sin-2x-3sinx-1-0-and-find-all-solutions-in-the-interval-0-2pi
displaystylex=frac7pi6quad extorquadfrac11pi6quad extorquadfrac3pi2 Explanation:We may identify this as a quadratic equation indisplaystylesinx ...
In the interval displaystyle0°lexle360° , how many values of displaystylex satisfy the equation displaystyle3sin^2left(x ight)+sinleft(x ight)-2=0 ...
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https://socratic.org/questions/in-the-interval-0-x-360-how-many-values-of-x-satisfy-the-equation-3sin-2-x-sin-x
displaystyle41^circ81,138^circ19,270^circ Explanation:Solve this quadratic equation for sin x displaystylefleft(x ight)=3sin^2x+sinx-2=0 ...
Nghi N. May 3, 2015 Let sin x = t,displaystylefleft(t ight)=t^2+2t-3=0 Since a + b + c = 0, one real root is t = 1 & the other:displaystylet=fracca=-3. ...
How bởi you solve displaystylesin^2x+3sinx-4=0 for displaystyle0lexle2pi ?
displaystylex=frac32pi Explanation:this is a quadratic eqn. Indisplaystyle ext sinx factorise if possible. displaystyleleft(sinx+4 ight)left(sinx-1 ight)=0 ...
Thêm Mục
left< eginarray l l 2 & 3 \ 5 và 4 endarray ight> left< eginarray l l l 2 & 0 và 3 \ -1 & 1 và 5 endarray ight>
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