Trigonometric Functions and Complex Numbers covers the followings areas in the International Mathematical Olympiad (IMO) and other mathematical competitions. Trigonometric identity, graphs and ...

Seething Ben Gannon-Doak was caught by the BBC camera shaking his head in anger after being hauled off for Scotland. The Bournemouth wide man had been the stand-out performer for the home side at ...

Interim co-coach Cedric Kaze has addressed a bizarre sequence of events in which goalkeeper Fiacre Ntwari seemingly refused to be substituted off the field during Kaizer Chiefs’ defeat to Stellenbosch ...

BDP has been brought into deliver the revamp and expansion of Leeds United Football Club’s famous Elland Road stadium, spelling the end for KSS’s involvement in the high-profile scheme AJ100 practice ...

Enzo Maresca has explained why he decided to leave Chelsea without an attack through his substitutions in their defeat to Manchester United on Saturday. The Blues lost 2-1 at Old Trafford as ...

The SEC said its officials erred in failing to penalize an “unfair tactic” on Oklahoma’s first touchdown in Saturday’s 24-17 win over Auburn. Oklahoma receiver Isaiah Sategna scored on a 24-yard ...

Abstract: The paper presents a framework for addressing the single-period inventory control problem with substitutable resources. It introduces an end-to-end approach to determine inventory levels of ...

This screenshot from CCTV (China Central Television) shows China’s first moon rover Yutu, or Jade Rabbit, in an image taken by the camera on the Chang’e 3 moon lander, Dec. 15, 2013. China does not ...

Numerous factors are working to dissuade Russia from directly challenging NATO, but once Moscow reconstitutes its military, one scenario stands out as a plausible path to a NATO-Russia war: The United ...

Ben Stokes gave a blunt response to the idea of introducing substitutions in cricket after Chris Woakes’ heroics at the end of the fifth Test between England and India. Woakes appeared as England’s No ...