Question

eliminate thita. x = 4 cos thita-5sin thita, y=4 sin thita+5 cos thita. plzz.... give me solution. don't give me irrevelent answer​

Answer 1

this is a right answer ok

Answer 2

Answer:

x²+y²=41

Step-by-step explanation:

x=4cos theta-5sin theta------(1)

y=4sin theta+5cos theta------(2)

by squaring on both sides of both equations

x²=16cos²theta+25sin²theta-40sintheta costheta

y²=25cos²theta+16sin²theta+40sintheta costheta

now, add both

we get

x²+y²=41cos²theta+41sin²theta

x²+y²=41(cos²theta+sin2theta)

x²+y²=41(1)

x²+y²=41

please like it.