Question

Prove geometrically that cos(x y) =cosx cos y-sinx siny and hence find cos(π/2 x

Explination of this qestion

Show that angle ABC = angle CDA

How  we are used the curved surface area in this question ?

What is inverse trigonometric
 

A space craft is at 4525 km above the earth’s surface. If it descends at the rate
of 5 km per minute. What will be its position after 9 hours?

•  Multiply and reduce to lowest form 3 by 8 multipled by 6 by 4

A refrigerator box contains 2 milk chocolates and 4 dark chocolates two chocolates are drawn at random. Find tgr probability distribution of the number of milk chocolate what is the most likely outcome

Explain Soap and detergent with diagram 

X²-3x-10=0

Unbaised

hi

Firstly I am very happy to get this beneficial app as a student , this is really good app and I will recommend it to my friends too.
I just want to correct a mistake which is in answer (iv) The coordinates will be (11/3 , 11/3) not (11/2 , 11/2). 
The students who copy without understanding the solution will surely need this otherwise their (iv) solution marks will be deducted. 
Thanks

• I did not understand the question.

3(x-1)=8