Question

Trigonometric formulas

Answer 1

sinA=p/h,cosA=b/h,tan=p/b
sin,cos,tan change into
cosecA=h/p,secA=h/b,cot=b/p

Answer 2

Answer:

Trigonometric identities :

$1. \: {sin}^{2} a + {cos}^{2}a = 1 \\ 2. \: \: {sin}^{2}a = 1 - {cos}^{2}a \\ 3. \: {cos}^{2} a = 1 - {sin}^{2} a \\ 4. \: {sec}^{2} a - {tan}^{2} a = 1 \\ 5. \: {sec}^{2}a = 1 + {tan}^{2} a \: \\ 6. \: {tan}^{2} a = {sec}^{2} a - 1 \\ 7. \: {cosec}^{2} a - {cot}^{2} a = 1 \\ 8. \: {cosec}^{2} a = 1 + {cot}^{2} a \\ 9. \: {cot}^{2} a = {cosec}^{2} a - 1$

Step-by-step explanation:

Hope it helps

#ravalika Rajula

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