Problem

20. secxsinx+cos(π2x)1+secx

Answer

Expert–verified
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Answer

sinx

Steps

Step 1 :secxsinx+cos(π2x)1+secx

Step 2 :1cosxsinx+cos(π2x)1+1cosx

Step 3 :sinxcosx+sinxcosx+1cosx

Step 4 :sinx(1+cosx)1+cosx

Step 5 :sinx

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