|A+B|=|A|=|B|,then find angle between A,B vector
THE DEGREE IS 120 !!!!!!!!!!!!!
1.name two renewable source of energy? 2. name a non renewable source of energy other than fossil fuel. 3. name a fraction obtained during refining of Petroleum that cannot be used as a fuel. 4. mention four fuels that we get from fossil fuels. 5.name a source of energy which is non renewable but an alternate source of energy. 6. what is ultimate source of energy of fossil fuels? 7. which is...