Please help!!!! all qustions please

See below for the missing terms of the sequences
The given parameters are:
T4 = 30
T5 = 49
Calculate the third term as follows:
T3 = T5 - T4
T3 = 49 - 30
T3 = 19
Calculate the second term as follows:
T2 = T4 - T3
T2 = 30 - 19
T2 = 11
Calculate the first term as follows:
T1 = T3 - T2
T1 = 19 - 11
T1 = 8
Hence, the first term of the sequence is 8
The given parameters are:
T2 = x
T3 = y
Calculate the first term as follows:
T1 = T3 - T2
T1 = y - x
Calculate the fourth term as follows:
T4 = T2 + T3
T4 = x + y
Calculate the fifth term as follows:
T5 = T3 + T4
T5 = y + x + y
T5 = x + 2y
Hence, the missing terms of the sequence are y - x, x + y and x + 2y
Read more about Fibonacci sequence at:
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