... (45Ð-30).
1) Press [(] [4] [5].
2) Press [2nd] [Ð].
3) Press [3] [0] [)] [x] [(] [4] [5].
4) Press [2nd] [Ð].
5) Press [(-)] [3] [0] [)].
6) Press [ENTER].
For additional instructions and examples on performing these types of calculations, refer to the online guidebook for your calculator mode... https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12150
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