Question

What is circumcircle and tension ?

secA+tanA=l show that secA=l2+1/2l

please solve this

 sir my question is that i have not a digital signature but itr 1 submitted tak a digital signature and itr 1 is nill for loaning after 30 days dhara 143(1) notice received this situation can i do

Prove that sinx+sin2x-sin3x =-4sinxcos0.5xsin1.5x

trigo

Integration of 3x2-2x+5dx/2x+1