11SIR JI ISKO BHI DEKH LO!!!!!!!!!!!!!
78 Answers
21Y???
the polygon can b concave a sir, some of the angles will 190,195 etc.
[12]
OR is da PROBLEM that 180° angle cannot be 2 diff sides???
1are dost 1 ka kya answer hoga???
i thot it will never form a polygon.
i thot it will b spiral
1marks do marks do question 3 mein marks do......
just kidding!:)
1in regard of ques22 first paper:
global minimum will be -1 at x=0(first find f dash x then put x=0)
remember global is asked.
for 21. explanation is doubtful......
21Question 3 : question mein it is COS(2x)
solution mein Cos2x
thewse are test 1 doubts....... pl. dont mind if i appear foolishly DUMB
11@ TAPAN
u r correct in post 1
mera bhi answer 16 hi aa raha tha
21QUE 75-77.....
I think ther is some error in the comp. kyonki that primary alcohol has 2 b of 5 carbons, all trhe options are 6 carboned........
ther has 2 b some err
AND HEY sky n mani : IN PAP1 woh Kf wala ans kisiko aaya kya?
thn pl. post the calculation yaar, mene 6times kar liya par ans 5.005 aisa kuch aaa raha hai
11SORRY SKY [2]
PLEASE READ THE BASICS AGAIN
I AM CORRECT
PLEASE VERIFY UR ANSWER
1oye!
for q.22 sec paper,
how the center of sec circle (2,-4) ??
it has to be (-2, 4)
and then dist between the centers is 13 units.
11@ SKY
answer toQ20 post no 15
B) look the center of 1st circle is (2,-4) [ radius->7 ]and 2nd circle is (-1,0) [radius->2]
distance between them is 5
r2-r1=5
so the 2nd circle will be inside 1st
SO 1 TANGENT
C)For 1st circle center is (3,-8)[radius->6] and for 2nd circle its (2,-4)[radius->7]
distance between centers is 5
u could now infer that there will be 3 TANGENTS
PROCEED BY THE ABOVE METHOD TO GET 4TH ANSWER
1Q75 comprehension for ques 75-77
A(C6H12) HCl >B+C (both are C6H13Cl)
B alc. KOH >D(isomer of A)
D ozonolysisl >E (negative test with Fehling solution but respoonds to iodoform test)
A ozonolysis >F+G(both give positive Tollen's test but do not give iodoform test)
F+G conc. NaOH HCOONa+a primary alcohol
A is
Your Answer: 4,4-dimethylbutene
Correct Answer: 2,3-dimethylbutene
Score: -1
Explaination :
it is A
Q76 E on iodoform reaction gives
Your Answer: acetic acid
Correct Answer: acetic acid
Score: 4.00
Explaination :
E is acetone
Q77 primary alcohol formed is
Your Answer: 3,3-dimethylbutanol
Correct Answer: 2,3-dimethylbutanol
Score: -1
Explaination :
it is (c)
yeh kisika sahi gaya ho toh mujhe samjha doh ......