If x+ y=90°, then what is the value of $$ {\sqrt{cosx.cosecy-cosx.siny}}$$?
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Q:
If x+ y=90°, then what is the value of $$ {\sqrt{cosx.cosecy-cosx.siny}}$$?
- 1cosxfalse
- 2sinxtrue
- 3$$ {\sqrt{sinx}}$$false
- 4$$ {\sqrt{cosx}}$$false
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