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Doesn't look like it but I'm not sure.
The rear mech will be pulled the correct distance based on how much the levers pull. The mechs themselves are very similar across 10 and 11 speed and work on the same cable pull ratio so one will work with the other but your 10 speed levers will only be pulling the mech across 10 cog spaces so it won't work with an 11 speed cassette -
Dunno but there's this cassette extender:
https://www.wolftoothcomponents.com/products/giant-cog-for-sram
PhilDAS
hippy
@gillies
Hm, but SRAM don't do a 42t 10 speed cassette, do they?