Ask a Doubt
Request a call back

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

JEE Class main Answered

Sir pls solve the following.
question image
Asked by rsudipto | 04 Jan, 2019, 07:17: PM
answered-by-expert Expert Answer
begin mathsize 16px style Consider comma open parentheses straight r subscript 1 plus straight r subscript 2 plus straight r subscript 3 minus straight r close parentheses squared equals straight r subscript 1 superscript 2 plus straight r subscript 2 superscript 2 plus straight r subscript 3 superscript 2 plus straight r squared minus 2 straight r open parentheses straight r subscript 1 plus straight r subscript 2 plus straight r subscript 3 close parentheses plus 2 open parentheses straight r subscript 1 straight r subscript 2 plus straight r subscript 2 straight r subscript 3 plus straight r subscript 3 straight r subscript 1 close parentheses straight r subscript 1 plus straight r subscript 2 plus straight r subscript 3 minus straight r equals 4 straight R space and space straight r subscript 1 straight r subscript 2 plus straight r subscript 2 straight r subscript 3 plus straight r subscript 3 straight r subscript 1 equals straight s squared rightwards double arrow open parentheses 4 straight R close parentheses squared equals straight r subscript 1 superscript 2 plus straight r subscript 2 superscript 2 plus straight r subscript 3 superscript 2 plus straight r squared minus 2 straight r open parentheses straight r subscript 1 plus straight r subscript 2 plus straight r subscript 3 close parentheses plus 2 straight s squared rightwards double arrow straight r subscript 1 superscript 2 plus straight r subscript 2 superscript 2 plus straight r subscript 3 superscript 2 plus straight r squared equals 16 straight R squared plus 2 straight r open parentheses straight r subscript 1 plus straight r subscript 2 plus straight r subscript 3 close parentheses minus 2 straight s squared rightwards double arrow 2 open parentheses rr subscript 1 plus rr subscript 2 plus rr subscript 3 close parentheses equals 2 open square brackets fraction numerator straight s squared over denominator straight s open parentheses straight s minus straight a close parentheses end fraction plus fraction numerator straight s squared over denominator straight s open parentheses straight s minus straight b close parentheses end fraction plus fraction numerator straight s squared over denominator straight s open parentheses straight s minus straight c close parentheses end fraction close square brackets Simplifying space this space we space get straight r subscript 1 superscript 2 plus straight r subscript 2 superscript 2 plus straight r subscript 3 superscript 2 plus straight r squared equals 16 straight R squared minus open parentheses straight a squared plus straight b squared plus straight c squared close parentheses straight r subscript 1 superscript 2 plus straight r subscript 2 superscript 2 plus straight r subscript 3 superscript 2 plus straight r squared plus straight a squared plus straight b squared plus straight c squared equals 16 straight R squared end style
Answered by Sneha shidid | 07 Jan, 2019, 10:11: AM
Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
JEE main - Maths
maths sum
question image
Asked by keerthananukala2007 | 02 May, 2024, 11:32: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Maths
Cos66+sin84
Asked by veerababukoppisettiveerababu3 | 17 Apr, 2024, 05:49: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Maths
If p and q are roots of the equation 2cosx+3 sinx=1, then the value of tan(p+q) is
Asked by rahulkumarbsc73 | 09 Apr, 2024, 04:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Maths
5cos2theeta-2sin2theeta=2
question image
Asked by srinivaskarri79 | 08 Apr, 2024, 09:53: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Maths
the value of cos 28 degrees . cos 32 degrees minus sin 28 degrees into 32 degrees
Asked by prasanthimaddula7 | 15 Mar, 2024, 08:10: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Maths
sin 78 degree-sin66degre-sin 42degree+sin6degree
Asked by amitras0003 | 26 Jan, 2024, 06:53: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Maths
sin^4pi/8+cos4pi/8+sin^4 3pi/8+cos^4 3pi/8+sin^4 5pi/8+cos^4 5pi/8 + sin^4 7pi/8+cos^4 7pi/8
question image
Asked by chinnagallakumaraswamy03 | 23 Jan, 2024, 09:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Maths
trigonometry
question image
Asked by anuragrr1222 | 29 Nov, 2023, 06:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Maths
a centre of angle of radius 30 cm intercepts arc of 6 cm express the central angle of teta in radians and in degrees
Asked by lakshmiprasannasalapu | 10 Nov, 2023, 11:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Maths
number of solutions of sinx + siny = sin(x+y), and |x| + |y|=1
Asked by sharma.phanindra | 26 Sep, 2023, 04:53: PM
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
×