Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 7 Answered

if a=1,b=-1,c=1,x=2,y=2 and z=-2 evaluate  ax2+by2+cz2
Asked by praneethnetha | 01 Nov, 2018, 09:53: PM
answered-by-expert Expert Answer
begin mathsize 16px style ax squared space plus space by squared space plus space cz squared space equals space 1 space cross times space open parentheses 2 close parentheses squared space space plus space open parentheses negative 1 close parentheses cross times space open parentheses 2 close parentheses squared space plus space 1 space cross times space open parentheses negative 2 close parentheses squared equals 4 space minus space 4 space plus space 4 space equals 4 end style
Answered by Yasmeen Khan | 02 Nov, 2018, 10:31: AM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 7 - Maths
in important questions 1 sum is -15+(-31+-15
Asked by sudhabalubeauty | 14 May, 2024, 06:30: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
-25 * (-31) distributive property
question image
Asked by latasahu9218 | 14 May, 2024, 05:55: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
B(9, 5). 10. If P (a, b), A ( a + 3 b + 4 ) , R(a - 1) b + 7 ) are three vertices of a parallelogram PQRS. Find the coordinates of S.
question image
Asked by shaikajeema999 | 10 May, 2024, 01:13: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
0 is an even number
Asked by sharmashivkumar26454 | 10 May, 2024, 06:36: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
34(-34)and(-28)
Asked by amritlalmishra97 | 28 Apr, 2024, 01:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
(-4)×(-5)×(-2)×(-1)
Asked by asthaenterprises2021 | 24 Apr, 2024, 04:58: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
find x if 9- 5 and 7 by 8 is equal to x-1/8
question image
Asked by shouryavijay0020012 | 17 Apr, 2024, 03:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
an aeroplane was flying at a height of 1800 m if decent at rate of 60 m per minute how long it will take to decent at height of 300 m
Asked by archanansingh89 | 14 Apr, 2024, 03:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
(-3)×(-12)÷(-4)+3×6
Asked by pakshat261 | 14 Apr, 2024, 01:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
starting from (-1)×5, write various products showing some pattern to show (-1)×(-1)= 1
Asked by dineshsinghdhan9 | 11 Apr, 2024, 11:06: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×