# Posts by Eku

Total # Posts: 3

**math**

If cos A=3/5,cos B =4/5,find the value of cos(A-B)/2

**math**

If sinA=0.8& A lies between 90°and 180° find the value of tan1/2A

**Data Analysis Excel**

Can you describe some situations in which you would have liked to exchange information between Excel and some other applications? What are these applications, and why was such an exchange desirable? How might such exchanges make your work faster, more efficient, or more ...