what is focal length of double concave lens kept in air with two spherical surface of radii R1=30 and R2=60. Take refractive index of lens as n=1.5

would be false hope this out

i sometimes feel that way too. i feel that i should hurt someone because they hurt me, but i wouldnt do it. that would make things so much worse i have so much experience with this stuff

explanation:

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.

no. dot product   =0 when vecs at right angles