2010012005 Level: AThe arithmetic mean of all values of φ between 0∘ and 360∘ for which sin(φ−40∘)=0 is:130∘220∘40∘180∘
2010012004 Level: AThe smallest value of φ, where 0∘<φ<180∘, satisfying the equation tg(2φ+34∘)=−33 is:58∘148∘29∘92∘
2010012003 Level: AThe largest value of φ, where 0∘<φ<360∘, satisfying the equation sin(3φ+66∘)=−12 is:328∘208∘338∘288∘
2010012002 Level: ASolve cos2x=2cosx for x, where x∈R.x∈⋃k∈Z{π2+kπ}x∈⋃k∈Z{π4+kπ;π2+kπ}x∈⋃k∈Z{π4+kπ}x∈∅
2010012001 Level: AFind all x, x∈R, such that tg2x=tgx.x∈⋃k∈Z{kπ;π4+kπ}x∈⋃k∈Z{kπ}x∈⋃k∈Z{π4+kπ}x∈⋃k∈Z{π2+kπ;π4+kπ}
2010011705 Level: AThe graph shows the set of all real numbers that satisfy the inequality |2x−14|≥6. Determine k.k=4k=0k=−4k=6
2010011704 Level: AThe solution set of an inequality is graphed on the number line. Determine this inequality.|7−x|>34|x+7|>20|14−x|>27|x+14|>13
2010011702 Level: AFind the solution set of the inequality |15−5x|≤3.[125;185][43;143][−185;−125][−143;−43]