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diff --git a/1205/CH2/EX2.1/S_2_1.sce b/1205/CH2/EX2.1/S_2_1.sce
new file mode 100644
index 000000000..357f8c861
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+++ b/1205/CH2/EX2.1/S_2_1.sce
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+clc;
+
+//Getting resultant of two vectors
+
+P=40; // N   Magnitude of vector P
+Q=60 // N Magnitude of vector Q
+// imagine triangle for triangle law of vectors 
+B=180-25;// degree , Angle between vector P and vector Q
+
+//R- Resultant vector
+B=B*%pi/180;// conversion into radian
+//R^2=P^2+Q^2-2*P*Q*cos(B);    Cosine Law
+R=sqrt(P^2+Q^2-2*P*Q*cos(B));// N
+
+printf("Maginitude of Resultant is R= %.2f N\n",R);
+
+
+//A- Angle between Resultant and P vector, Unknown
+
+// sin(A)/Q == sin(B)/R  sine law
+
+A=asin(Q*sin(B)/R);// radian
+
+
+A=A*180/%pi;//// Conversion into degree
+
+alpha=A+20;// degree
+printf("Angle of Resultant  vector R with x axis is %.2f Degrees\n",alpha);
+
+