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1103076611 Level: CThe graph shown in the picture is graph of the function:f(x)=sin|x|f(x)=|sinx|f(x)=|cosx|f(x)=cos|x|
1103082703 Level: CFunction f is given completely by the next graph. Identify which of the following statements is true.f(x)=−|sinx|; x∈[−2π;2π]f(x)=|cosx|; x∈[−2π;2π]f(x)=|−sinx|; x∈[−2π;2π]f(x)=−0.5⋅sinx; x∈[−2π;2π]
2000004201 Level: COn the interval (0;π), simplify the expression 2sinx+sin2x2sinx−sin2x.1+cosx1−cosx1−cosx1+cosx1+cosx1−cosx
2000004202 Level: COn the interval (−π2;π2), simplify the expression sin2x1−sin2x.2 tgxtgxtg2x1−tgx
2000004204 Level: CChoose the function that has its graph shown in the picture.f(x)=2−|sinx|f(x)=2+|sinx|f(x)=|sinx|−2f(x)=|sin2x|
2010016401 Level: CIdentify the function shown in the graph.f(x)=2sinxf(x)=−2sinxf(x)=|2sinx|f(x)=|sinx|
2010016404 Level: CFunction f is given completely by the next graph. Identify which of the following statements is true.f(x)=|−cosx|; x∈[−2π;2π]f(x)=−|cosx|; x∈[−2π;2π]f(x)=|sinx|; x∈[−2π;2π]f(x)=−|sinx|; x∈[−2π;2π]
2010016806 Level: CThe domain of the expression cos2x1+sinx is the set:{x∈R:x≠3π2+2kπ, k∈Z}R{x∈R:x≠π2+2kπ, k∈Z}{x∈R:x≠π+2kπ, k∈Z}
2010016807 Level: CThe expression sinx−sin3xcosx−cos3x for x∈(0;π2) is equal to:cotgxtgxsinx⋅cosx2tgx