Question Number 58569 by peter frank last updated on 25/Apr/19
$${A}\:{vector}\:{has}\:{magnitude} \\ $$$$\mathrm{6}\:{and}\:{bearing}\:\mathrm{100}°.{write} \\ $$$${it}\:{in}\:{the}\:{form}\:{ai}+{bj} \\ $$
Answered by tanmay last updated on 25/Apr/19
$$\overset{\rightarrow} {{A}}=\mathrm{6}{cos}\left(\mathrm{100}^{{o}} \right){i}+\mathrm{6}{sin}\left(\mathrm{100}\right){j} \\ $$
Commented by peter frank last updated on 25/Apr/19
$${thank}\:{you}.{but}\:{the}\:{ans} \\ $$$${given} \\ $$$$\mathrm{5}.\mathrm{91}{i}−\mathrm{1}.\mathrm{04}{j} \\ $$
Commented by tanmay last updated on 25/Apr/19
$${put}\:{the}\:{value}\:{of}\:{cos}\mathrm{100}^{{o}} \:{and}\:{sin}\mathrm{100}^{{o}} \\ $$
Commented by peter frank last updated on 25/Apr/19
$$\mathrm{6cos}\:\mathrm{100}=−\mathrm{1}.\mathrm{041} \\ $$$$\mathrm{6sin}\:\mathrm{100}=\mathrm{5}.\mathrm{9088} \\ $$