If acosθ + bsinθ =3 & asinθ -bcosθ =4 then a squer + b squer has the value=
(A) 25
(B) 14
(C) 7
(D) None of this
Answers
Answered by
5
Answer:
Equation first
acos0+bsin0=3
Equation second
asin0-bcos0=4
Sq both side in eq. 1 and 2 then adding,we get
asquare +bsquare=25
Step-by-step explanation:
Similar questions