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# In a right-angled triangle, if tan θ = ¾, what is cos θ – sin θ…

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**In a right-angled triangle, if tan θ = ¾, what is cos θ – sin θ?**

**In a right-angled triangle, if tan θ = ¾, what is cos θ – sin θ?**

**A. 4/5****B. 1/5****C. 2/5****D. 3/5**

**QUICK ANSWER…**

**B**

**SOLUTION****… **** **

**A right-angled triangle is a triangle which has one of its angles as 90 degree.**

**In such case, we can correctly use SOHCAHTOA to resolve it.**

**For this question, we would draw a sketch where the opposite side will be 3 and adjacent side 4.**

**Now for the right answer to the above question:**

**Option A is incorrect.****Option B is correct.****C is incorrect.****D is not the correct answer.**

**KEY-POINTS****…**

**You may please note the****se/this****:**

**A right-angled triangle has one of its angles as 90 degree, and obeys SOHCAHTOA.****SOHCAHTOA is only applicable to a right-angled triangle.**

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**/ culled from 2015 JAMB-UTME mathematics past question 29 /**