(2) By orthogonality r2 = |c|2 − 1.
CITATION STYLE
Hariri, P., Klén, R., & Vuorinen, M. (2020). Solutions to Exercises. In Springer Monographs in Mathematics (pp. 359–452). Springer. https://doi.org/10.1007/978-3-030-32068-3_20
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