The phrase "able to discover whether" is correct and usable in written English.
It can be used when discussing the capability to find out or determine a specific condition or fact.
Example: "The researchers were able to discover whether the new treatment was effective in reducing symptoms."
Alternatives: "capable of determining if" or "able to ascertain whether".
Yet, just as he denied being an unusually talented writer, so he demurred, "I have never been able to discover whether my interest in sex is more than normal.
Chancellor Philip Hammond told Peston that he hopes the cross-party talks with Labour would be able to discover whether there was a "landing zone" where both sides could meet on a deal, the Press Association reports.
Thus in the immune system, as perhaps in few others, one might be able to discover whether there are limits to the benefits of perfect knowledge of the environment.
We were thereby able to discover whether or not a particular underlying theoretical perspective could explain the lack of significance – and would therefore have to be noted as being less promising.
What is unclear is whether the eurozone will be able to discover significant growth or whether the zone will flat-line and stagnate.
They concluded that viral transmission within the colony might kill both mites and bees, but they were not able to discover the virus in time to determine whether bees in the colony were infected, and they were unable to purify the virus or determine whether the virus could be transmitted to bees by inoculation.
It is thus interesting to find out whether ReTrace is able to discover alternative, complete pathways to IMP from a single carbon atom source.
We investigate whether BLSSpeller is able to discover the ga2ox1-like KN1 motifs and binding sites through a comparative study of the four monocot species.
The police and tax authorities will be able to discover what you own, what you do with it, and whether you are living in your house, for example.
Likewise they have not been able to discover the extent to which local Nigerian soils were contaminated or whether nearby villages and schools were affected by any of the toxic clouds that would have been blown across the countryside.
Of course, a party should not be able to discover his opponent's legal memoranda or statements of witnesses not called whether his request is at trial or before trial.
