If sintheta-costheta=(7)/(13) and 0^(@) ...

If `sintheta-costheta=(7)/(13)` and `0^(@) lt theta lt 90^(@)`,
then the value of `sin_(theta)+cos_(theta)` is(यदि `sintheta-costheta=(7)/(13)and 0^(@)` और `0^(@) lt theta lt 90^(@)` तो का मान ज्ञात क्या होगा )

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