Hey please listen to my problem …

Hey please listen to my problem and then suggest what should I do..... Actually I was going good in maths till 10 ..but suddenly when I came to 11 everything changed!!!.... I have never taken any tuitions till 10 for any tuitions but did good... But even after taking tuitions I became very bad in maths..... Also when I ask doubts to my teacher they never get it clear to me.... So because of that I also lost interest in maths and now I'm hating it because I don't know how to study... There is no one to help me... And I m very worried for it..... I don't know why this happening to me.... And now in 12 also..... I want to become brilliant in maths but how.... I've lost interest... I really feel not to study maths...... What do I do... Should I change tuition or whhich way is good to study maths...... I also think my way of studying maths is not right.... ??

What is the maximum value of sinx + cos x

Find all vectors of magnitude 10√3 that are perpendicular to the plane of i+2j+k and -i+3j+4k

function f is defined as f(x) = {2x+2, x<2; k, x=2; 3x, x>2} find the value of k for which the function f is continuous at x=2

Three friends Ravi Raju

Find the second order derivatives of the functions x²+3x+2

Project on to minimise the cost of the food, meeting the dietary requirements of the staple food of the adolescent students of your school. Task to be done 1. Make a survey of atleast 100 people to find the staple food they consume on daily basis. 2. Select two food items constituting one cereal and one pulse. 3. Find from dietician minimum requirement of protein and carbohydrates for an andolescent and also find the content of protein and carbohydrates in 1 Kg of selected cereal and pulse from the market. 4. Find the minimum cost of the selected cereal and pulse from market. 5. formulate the corresponding linear programming problem. 6. solve the problem graphically. 7. Interpret the result.

Y= 1/2 [tan¯¹(2x/1-x²) + 2tan¯¹(1/x)

Y=sin√ax^2+√bx+√c

Prove that tan–¹ (x+1) + tan–¹(x-1) = tan–¹ 8/31

What is the maximum value of the function sin x + cosx