I literally just want someone to talk to during schoo!!! Is anyone interested virtual sucks i cant socialize with any of my friends so someone talk to me pleas

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

Is an altitude in triangle abc. which statements are true? check all that apply. δabc δbxc δaxc ~ δcxb δbcx δacx δacb ~ δaxc δcxa δcba

2polnts what is the value of the fourth term in a geometric sequence for which a = 10 and r= 0.5?