Maths Revision: Answers
Algebra
1. X=-5,-1,5/3,3
2. -1<x<-1/2
3. Imaginary roots.
4. x≤0 or x≥4
5. a<-1/8
6. x=2,-1
7. x=0,3,8.
8. X=5/4
9. X=3, y=-9.
10. Before: A=Rs. 2800; B=Rs. 2090, After: A =Rs.2720 and B=Rs 2100.
14. (a) A’(-5,1) B’(3,-3) (b)1:3
15. A”(-2,-1) B”(1,-3) C”(2,2)
Co-ordinate Geometry
1. 8x-23y+39=0
2. X+2y-4=0
3. 3x-2y=12.
4. (2,3)
5. (5,4)
6. 9x-2y+1=0
7. x/6+y/10=1
8. . 5x=8y+13=0
9. (-10/9,49/27)
Trigonometry.
1. 90 deg, 30 deg
2. 30 degrees.
3. ½
4. 30 degrees
5. 30 degrees.
6. 87.84m
7. 34.64m, 20m.
8. 819.6 mts.
Why no answers on geometry?? Also the prove sums are not solved. Quite difficult u know
Hello Sir….
Pls help me in Trigonometry last qns…….A prove………Pls solve or give some hint so that i can follow……..Pls reply soon………its urgent…….
Thank you for your kind cooperation….
sir
I am rather confused with answer to Q3 of Trigonometry.
My answer is 3.732
pl help me