Question

If A is not in 2nd quadrant B is not in 3rd quadrant and cosA=-1/2 cosB=1/2 then find the value of (4sinB-3tanA)/tanB+sinA

Answer 1

Answer:

Suppose you are using a meter scale (metalic) marked 0 to 100cm .Let the scale is graduated at 20°c & you are taking reading at 40°c . Let the scale becomes 101cm but you count it 100cm so measured reading is less than actual reading .metallic mercury and not its oxide of cinnabar (Hgs), produce

metallic mercuryny electrons are required to discharge 3 moles of Ca++ iondoes the roasting of cinnabar (Hgs), producedoes the roasting of cinnabar (Hgs), produce